transcription, транскрипция: [ ˌən-bi-ˈnōn(t)st ]
adjective
also un·be·known -ˈnōn
Etymology: un- (I) + obsolete English beknown known; unbeknownst, irregular from unbeknown
Date: 1636
1. : happening or existing without the knowledge of someone specified — usually used with to
unbeknownst to us rumors were flying
2. : unknown