Unheard-of

What is Unheard-of?

Unheard-of definition and meaning on Dictionary terms:
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.

 

reference: https://www.dictionary.com/browse/unheard-of

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