transcription, транскрипция: [ ˈʌnbɪˈnəun ]
adj. (also unbeknownst) (foll. by to) without the knowledge of (was there all the time unbeknown to us). [UN-(1) + beknown (archaic) = KNOWN]
UNBEKNOWN
Meaning of UNBEKNOWN in English
English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012