Dictionary

unbeknownst

adjective un·be·knownst \ˌən-bi-ˈnōn(t)st\

Definition of UNBEKNOWNST

: happening or existing without the knowledge of someone specified —usually used with to <unbeknownst to us rumors were flying>

: unknown

See unbeknownst defined for English-language learners

See unbeknownst defined for kids

un·be·knownst also un·be·known \-ˈnōn\

¹un- + obsolete English beknown known; unbeknownst, irregular from unbeknown

First Known Use: 1636

UNBEKNOWN Defined for Kids

adjective un·be·knownst \ˌən-bi-ˈnōnst\

: happening without someone's knowledge : unknown <Unbeknownst to him, we were planning a surprise party.>

un·be·knownst also un·be·known \-ˈnōn\

Next Word in the Dictionary: unbeliefPrevious Word in the Dictionary: unbeheldAll Words Near: unbeknownst

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