at/in the back of one's mind
phrase
: in the part of one's mind where thoughts and memories are kept but that are not usually thought about or not perfectly remembered
Somewhere in the back of my mind I knew I'd met him before.
Cite this Entry
“At/in the back of one's mind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/at%2Fin%20the%20back%20of%20one%27s%20mind. Accessed 7 Mar. 2026.
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Merriam-Webster unabridged
