unheard-of
[ uhn-hurd-uhv, -ov, -uh v ]
/ ʌnˈhɜrdˌʌv, -ˌɒv, -əv /
adjective
that was never heard of; unknown: an unheard-of artist.
such as was never known before; unprecedented: an unheard-of salary.
shocking or outrageous: unheard-of conduct.
Origin of unheard-of
First recorded in 1585–95
Words nearby unheard-of
unhealed,
unhealthful,
unhealthy,
unheard,
unheard of,
unheard-of,
unheated,
unheeded,
unhelm,
unhelpful,
unheralded
British Dictionary definitions for unheard of
unheard-of
adjective
previously unknown
an unheard-of actress
without precedent
an unheard-of treatment
highly offensive
unheard-of behaviour
Idioms and Phrases with unheard of
unheard of
Very unusual, extraordinary, as in It's unheard of to have all one's money refunded two years after the purchase. This expression alludes to a circumstance so unusual that it has never been heard of. [Late 1500s]