(adjective, adverb)


1. (usually used with `to') occurring or existing without the knowledge of

- a crisis unbeknown to me

- she had been ill for months, unbeknownst to the family

Similar word(s): unknown, unbeknown


1. without someone's knowledge

- unbeknownst to me, she made all the arrangements

Similar word(s): unbeknown

Sentences with unbeknownst as an adverb:

- He went home early, unbeknownst to his mother.