unheard of


Definition: Meaning of, unheard of in English to English dictionary.

Pronunciation: / ʌnˈhəːd ɒv;(ə)v /

  • adjective
  • synonym
  • antonym
Word Forms:
Positive Comparative Superlative
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unheard-of
  1. something that is unheard of is so unusual that it has not happened or been known before
    SYNONYM
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    ANTONYM
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synonym
antonym