unbeknownst to

idiom

Definition of unbeknownst to

chiefly US
: without being known about by (someone) Unbeknownst to the students, the teacher had entered the room.

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Cite this Entry

“Unbeknownst to.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unbeknownst%20to. Accessed 23 Jan. 2022.

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