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unbeknownst

adjective

Synonyms and Antonyms of unbeknownst

  1. happening or existing without one's knowledge <unbeknownst to me, my mother was planning a party> Synonyms unknown (also unbeknown)Related Words unperceived, unrecognized, unsuspected; unaware, unconscious, unmindful; unknowing, unsuspecting, unwitting; ignorant, unacquainted, unfamiliar



Variants of unbeknownst

also unbeknown

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