Unbeknownst

/ˌənbɪˈnoʊn(d)st/

Meaning & Definition

adverb

Without the knowledge of; unknown to.

Unbeknownst to her, he had planned a surprise party for her birthday.

In a way that is not known or perceived.

They continued their conversation, unbeknownst to the fact that they were being watched.

Without someone's knowledge.

Unbeknownst to him, his friends were all in on the secret.

Unknown to someone.

Unbeknownst to the team, their project had already been approved.

Late 17th century; originally unknown.

unbeknownst to me

Without my knowledge or awareness.

unbeknownst to the public

Unknown to the general population.

unbeknownst to him

Not known by him.

unknown

Not known or familiar.

ignorant

Lacking knowledge or awareness.

Off the radar

The whole operation was off the radar for everyone involved.

Under the radar

She was dating someone under the radar, unbeknownst to her friends.