UNHEARD-OF


Meaning of UNHEARD-OF in English

transcription, транскрипция: [ -ˌəv, -ˌäv ]

adjective

Date: 1592

: previously unknown ; especially : unprecedented

moving at unheard-of speeds

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.