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.

Word by Word Definitions

unbeknownst play

: happening or existing without the knowledge of someone specified
: unknown

See the full definition of unbeknownst

Seen and Heard

What made you want to look up unbeknownst to? Please tell us where you read or heard it (including the quote, if possible).

show

WORD OF THE DAY

skirl

play

to emit the high shrill tone of bagpipes

Words at Play

Ask the Editors

Word Games