unheard-of Hear it!

unheard-of definition

unheard·-of (-hʉrd′uv′)

adjective

  1. not heard of before; unprecedented or unknown
  2. unacceptable or outrageous unheard-of effrontery

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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