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    <periodOfReport>2014-06-02</periodOfReport>

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    <issuer>
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        <issuerName>Brookdale Senior Living Inc.</issuerName>
        <issuerTradingSymbol>BKD</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Fortress Investment Group LLC</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>1345 AVENUE OF THE AMERICAS, 46TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
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    <reportingOwner>
        <reportingOwnerId>
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            <rptOwnerName>FIG LLC</rptOwnerName>
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            <rptOwnerStreet1>1345 AVENUE OF THE AMERICAS, 46TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
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    <reportingOwner>
        <reportingOwnerId>
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            <rptOwnerName>FIG Corp.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1345 AVENUE OF THE AMERICAS, 46TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
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    <reportingOwner>
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            <rptOwnerStreet2></rptOwnerStreet2>
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            <rptOwnerState>NY</rptOwnerState>
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                    <value>Fortress Investment Fund IV (Coinvestment Fund D) L.P.</value>
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                <directOrIndirectOwnership>
                    <value>I</value>
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                <natureOfOwnership>
                    <value>Fortress Investment Fund IV (Coinvestment Fund G) L.P.</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
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                <value>2014-06-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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                <transactionShares>
                    <value>8793392</value>
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                <transactionPricePerShare>
                    <value>32.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                    <value>0</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Fortress RIC Coinvestment Fund LP</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
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    <footnotes>
        <footnote id="F1">Each reporting person disclaims beneficial ownership of all reported shares except to the extent of its pecuniary interest therein and the inclusion of the shares in this report shall not be deemed to be an admission of beneficial ownership of the reported shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise.</footnote>
        <footnote id="F2">FIG LLC is the investment manager of Fortress Investment Fund IV (Fund A) L.P., Fortress Investment Fund IV (Fund B) L.P., Fortress Investment Fund IV (Fund C) L.P., Fortress Investment Fund IV (Fund D) L.P., Fortress Investment Fund IV (Fund E) L.P., Fortress Investment Fund IV (Fund F) L.P., Fortress Investment Fund IV (Fund G) L.P., Fortress Investment Fund IV (Coinvestment Fund A) L.P., Fortress Investment Fund IV (Coinvestment Fund B) L.P., Fortress Investment Fund IV (Coinvestment Fund C) L.P., Fortress Investment Fund IV (Coinvestment Fund D) L.P., Fortress Investment Fund IV (Coinvestment Fund F) L.P., and Fortress Investment Fund IV (Coinvestment Fund G) L.P. Fortress Operating Entity I LP (FOE I) is the sole managing member of FIG LLC. FIG Corp. is the general partner of FOE I, and FIG Corp. is wholly-owned by Fortress Investment Group LLC (&quot;FIG&quot;).</footnote>
        <footnote id="F3">FIG LLC is the investment manager of Fortress RIC Coinvestment Fund LP. FOE I is the sole managing member of FIG LLC. FIG Corp. is the general partner of FOE I, and FIG Corp. is wholly-owned by FIG.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ David Brooks, as Authorized Signatory of Fortress Investment Group LLC</signatureName>
        <signatureDate>2010-06-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ David Brooks, as Secretary of FIG LLC</signatureName>
        <signatureDate>2014-06-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ David Brooks, as Secretary of FIG Corp.</signatureName>
        <signatureDate>2014-06-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ David Brooks, as Secretary of Fortress Operating Entity I LP</signatureName>
        <signatureDate>2014-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
