not someone's concern

idiom
variants: or none of someone's concern or no concern of someone's

Definition of not someone's concern

: not something one is responsible for or involved in Her affairs are not my concern. That's no concern of yours.

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Cite this Entry

“Not someone's concern.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/not%20someone%27s%20concern. Accessed 14 Aug. 2020.

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