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Definition of unprecedented

unprecedented

/ʌnˈprɛs.ɪ.dɛn.tɪd/
un · prec · e · dent · ed
Adverb:unprecedentedly
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unprecedented Lexical Profile

unprecedented Game Scores & Validity

• adjective

1

Never done, known, or experienced before; without previous example or parallel.

Example

"The scientific community achieved an unprecedented level of international cooperation during the research project."

Synonyms
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Antonyms
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• Nearby Words

unpractical
unpracticed
unpraised
unprecedented
unprecedentedly
unpredictability
unpredictable

Word Origin & Etymology

Coined in the early 17th century from the prefix 'un-' and 'precedented', which derives from the Middle French 'précédent' and ultimately from the Latin 'praecedere', meaning 'to go before'.

Cite this Entry

Wordmom. (2026). Definition of Unprecedented. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unprecedented
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