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UNHEARD-OF Definition & Meaning - Merriam-Webster
The meaning of UNHEARD-OF is previously unknown; especially : unprecedented. How to use unheard-of in a sentence.
unheard-of thing
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UNHEARD-OF | English meaning - Cambridge Dictionary
Unknown and unfamiliar (Definition of unheard-of from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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285 Synonyms & Antonyms for UNHEARD-OF | Thesaurus.com
Find 285 different ways to say UNHEARD-OF, along with antonyms, related words, and example sentences at Thesaurus.com.
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Unheard-of - definition of unheard-of by The Free Dictionary
1. unprecedented: an unheard-of scientific advance. 2. outrageous: unheard-of extravagance. 3. not previously known: the debut of an unheard-of singer.
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UNHEARD OF definition and meaning | Collins English Dictionary
You can say that an event or situation is unheard of when it never happens. Meals are taken communally. Private bathrooms and toilets are unheard of. It is unheard of for a professional golfer to take such action.
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UNHEARD-OF Definition & Meaning | Dictionary.com
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.
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unheard-of adjective - Definition, pictures, pronunciation ...
Definition of unheard-of adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
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Unheard-of - Definition, Meaning & Synonyms | Vocabulary.com
6 days ago · Definitions of unheard-of adjective previously unknown “developments on an unheard-of scale” synonyms: unknown not known
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unheard-of - Wiktionary, the free dictionary
Jul 9, 2025 · unheard - of (comparative more unheard-of, superlative most unheard-of) Previously unknown; unprecedented. quotations
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UNHEARD-OF Synonyms: 32 Similar and Opposite Words | Merriam ...
Synonyms for UNHEARD-OF: unprecedented, novel, strange, unfamiliar, new, fresh, original, unknown; Antonyms of UNHEARD-OF: old, familiar, hackneyed, traditional, conventional, tired, established, time-honored