back of one's mind

noun phrase

: the part of one's mind where thoughts and memories are stored to be drawn on

Word History

First Known Use

1910, in the meaning defined above

Time Traveler

The first known use of back of one's mind was in 1910

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“Back of one's mind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/back%20of%20one%27s%20mind. Accessed 13 Mar. 2026.

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Last Updated: 24 Feb 2026 - Definition revised

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back of one's mind

noun phrase

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