<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<link:linkbase xmlns:ns6="http://www.sec.gov/edgar/bulkfiling" xmlns:ns5="http://xbrl.org/2006/xbrldi" xmlns:ns8="http://www.sec.gov/edgar/common" xmlns:ns7="http://www.sec.gov/edgar/singlefilersc" xmlns:ns9="http://www.sec.gov/edgar/sccommon" xmlns:ns11="http://www.sec.gov/edgar/feecommon" xmlns:ns10="http://www.sec.gov/edgar/coregsc" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:ns4="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ns3="http://www.xbrl.org/2003/XLink">
    <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SeriesOnly"/>
    <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly"/>
    <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#RiskOnly"/>
    <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#PerformanceMeasureOnly"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/DocumentInformation" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_DocumentInformation"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/RiskSummaryS000029150_StrategicAdvisersCoreIncomeFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_RiskSummaryS000029150_StrategicAdvisersCoreIncomeFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/DisclosureDetailS000029150_StrategicAdvisersCoreIncomeFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_DisclosureDetailS000029150_StrategicAdvisersCoreIncomeFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/RiskSummaryS000030092_StrategicAdvisersEmergingMarketsFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_RiskSummaryS000030092_StrategicAdvisersEmergingMarketsFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/DisclosureDetailS000030092_StrategicAdvisersEmergingMarketsFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_DisclosureDetailS000030092_StrategicAdvisersEmergingMarketsFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/RiskSummaryS000029153_StrategicAdvisersFidelityInternationalFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_RiskSummaryS000029153_StrategicAdvisersFidelityInternationalFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/DisclosureDetailS000029153_StrategicAdvisersFidelityInternationalFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_DisclosureDetailS000029153_StrategicAdvisersFidelityInternationalFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/RiskSummaryS000029151_StrategicAdvisersIncomeOpportunitiesFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_RiskSummaryS000029151_StrategicAdvisersIncomeOpportunitiesFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/DisclosureDetailS000029151_StrategicAdvisersIncomeOpportunitiesFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_DisclosureDetailS000029151_StrategicAdvisersIncomeOpportunitiesFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/RiskSummaryS000029152_StrategicAdvisersInternationalFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_RiskSummaryS000029152_StrategicAdvisersInternationalFund-PRO"/>
    <link:roleRef roleURI="http://www.fidelity.com/role/DisclosureDetailS000029152_StrategicAdvisersInternationalFund-PRO" xlink:type="simple" xlink:href="fmr-20260429.xsd#role_DisclosureDetailS000029152_StrategicAdvisersInternationalFund-PRO"/>
    <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
    <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
    <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
    <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
    <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:title="050020 - Document - Series">
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis" xlink:label="LegalEntityAxis"/>
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="EntityDomain"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_S000029152Member" xlink:label="fmr_S000029152Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="fmr_S000029152Member" order="10.1"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_S000029151Member" xlink:label="fmr_S000029151Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="fmr_S000029151Member" order="10.2"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_S000029153Member" xlink:label="fmr_S000029153Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="fmr_S000029153Member" order="10.3"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_S000030092Member" xlink:label="fmr_S000030092Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="fmr_S000030092Member" order="10.4"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_S000029150Member" xlink:label="fmr_S000029150Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="fmr_S000029150Member" order="10.5"/>
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:title="050030 - Document - Class">
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_C000089634Member" xlink:label="fmr_C000089634Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_C000089633Member" xlink:label="fmr_C000089633Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_C000089635Member" xlink:label="fmr_C000089635Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_C000092425Member" xlink:label="fmr_C000092425Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_C000089632Member" xlink:label="fmr_C000089632Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="fmr_C000089634Member" order="2"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="fmr_C000089633Member" order="3"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="fmr_C000089635Member" order="4"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="fmr_C000092425Member" order="5"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="fmr_C000089632Member" order="6"/>
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:title="050010 - Document - Risk">
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AllRisksMember" xlink:label="AllRisksMember"/>
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_RiskAxis" xlink:label="RiskAxis"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_ForeignAndEmergingMarketsRiskMember" xlink:label="ForeignAndEmergingMarketsRiskMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ForeignAndEmergingMarketsRiskMember" order="500"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_LeverageRiskMember" xlink:label="LeverageRiskMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="LeverageRiskMember" order="500.1"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_InvestingInEtfsAndClosedEndFundsMember" xlink:label="InvestingInEtfsAndClosedEndFundsMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InvestingInEtfsAndClosedEndFundsMember" order="500.2"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_GeographicExposureToTheChinaRegionMember" xlink:label="GeographicExposureToTheChinaRegionMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GeographicExposureToTheChinaRegionMember" order="500.3"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_InvestingInOtherFundsMember" xlink:label="InvestingInOtherFundsMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InvestingInOtherFundsMember" order="500.4"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IndustryExposureMember" xlink:label="IndustryExposureMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="IndustryExposureMember" order="500.5"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_GeographicExposureToJapanMember" xlink:label="GeographicExposureToJapanMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GeographicExposureToJapanMember" order="500.6"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IssuerSpecificChangesMember" xlink:label="IssuerSpecificChangesMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="IssuerSpecificChangesMember" order="500.7"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_MultipleSubAdviserRiskMember" xlink:label="MultipleSubAdviserRiskMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="MultipleSubAdviserRiskMember" order="500.8"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_StockMarketVolatilityMember" xlink:label="StockMarketVolatilityMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="StockMarketVolatilityMember" order="500.9"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_InterestRateChangesMember" xlink:label="InterestRateChangesMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InterestRateChangesMember" order="501.0"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_QuantitativeInvestingMember" xlink:label="QuantitativeInvestingMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="QuantitativeInvestingMember" order="501.1"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_HighPortfolioTurnoverMember" xlink:label="HighPortfolioTurnoverMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="HighPortfolioTurnoverMember" order="501.2"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_InvestingInEtfsMember" xlink:label="InvestingInEtfsMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InvestingInEtfsMember" order="501.3"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_ForeignExposureMember" xlink:label="ForeignExposureMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ForeignExposureMember" order="501.4"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_PrepaymentMember" xlink:label="PrepaymentMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="PrepaymentMember" order="501.5"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_GeographicExposureToEuropeMember" xlink:label="GeographicExposureToEuropeMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GeographicExposureToEuropeMember" order="501.6"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_GeographicExposureMember" xlink:label="GeographicExposureMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GeographicExposureMember" order="501.7"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_GeographicExposureToAsiaMember" xlink:label="GeographicExposureToAsiaMember"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GeographicExposureToAsiaMember" order="501.8"/>
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly" xlink:title="050040 - Document - Performance Measure">
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_PerformanceMeasureDomain" xlink:label="PerformanceMeasureDomain"/>
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AfterTaxesOnDistributionsMember" xlink:label="AfterTaxesOnDistributionsMember"/>
        <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AfterTaxesOnDistributionsAndSalesMember" xlink:label="AfterTaxesOnDistributionsAndSalesMember"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IndexMS001Member" xlink:label="fmr_IndexMS001Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IndexML038Member" xlink:label="fmr_IndexML038Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IndexLB091Member" xlink:label="fmr_IndexLB091Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IndexMC041Member" xlink:label="fmr_IndexMC041Member"/>
        <link:loc xlink:type="locator" xlink:href="fmr-20260429.xsd#fmr_IndexLB001Member" xlink:label="fmr_IndexLB001Member"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="fmr_IndexMS001Member" order="5"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="fmr_IndexML038Member" order="6"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="fmr_IndexLB091Member" order="7"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="fmr_IndexMC041Member" order="8"/>
        <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="fmr_IndexLB001Member" order="9"/>
    </link:definitionLink>
</link:linkbase>