unheard-of
adjective /ʌnˈhɜːd əv/
/ʌnˈhɜːrd əv/
- that has never been known or done; very unusual
- He'd dyed his hair, which was almost unheard-of in the 1960s.
- It is almost unheard-of for a new band to be offered such a deal.
- At that time, it was completely unheard-of for girls to go to university.
- He was sentenced to a hitherto unheard-of seven life terms in prison.
Oxford Collocations Dictionaryverbs- be
- absolutely
- completely
- quite
- …