unprecedented

adjective

ˌən-ˈpre-sə-ˌden-təd How to pronounce unprecedented (audio)
Definition of unprecedentednext
as in novel
not known or experienced before this is an unprecedented request for the reference desk

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of unprecedented The company described the incident as unprecedented, saying the models involved demonstrated advanced cyber capabilities while attempting to solve a benchmark designed to test long-horizon cyber operations. — Neetika Walter, Interesting Engineering, 21 July 2026 Officials rang the alarm bell about an advanced new artificial intelligence model that could pose an unprecedented cybersecurity threat to the nation's top financial institutions. — Matt Peterson,ashley Capoot, CNBC, 21 July 2026 The success of Hebrew is obviously due to a convergence of circumstances historically unprecedented and unrepeatable. — Nikhil Krishnan, New Yorker, 20 July 2026 Additional dates are expected to be added in response to unprecedented global demand, the BFI IMAX said Monday. — Lily Ford, HollywoodReporter, 20 July 2026 See All Example Sentences for unprecedented
Recent Examples of Synonyms for unprecedented
  1. novel
  2. new
  3. strange
  4. unfamiliar
  5. fresh
  6. unheard-of
  7. original
Adjective
  • Anthropic says Opus 5 scored three times higher than the next-best model on ARC-AGI 3, which tests how well models solve novel problems.
    — Neetika Walter, Interesting Engineering, 24 July 2026
  • The series offers viewers insight into a setting — interwar Asia — and themes that should be novel to all but the most ardent historians.
    — David Faris, TheWeek, 23 July 2026
Definition of novel
Adjective
  • Among those rumoured to be part of a new regime, the old 1998 goalkeeper Fabien Barthez is in the mix.
    — Amy Lawrence, New York Times, 21 July 2026
  • Iran’s unemployment has worsened since the conflict began, and its currency has hit new lows.
    — Jomana Karadsheh, CNN Money, 21 July 2026
Definition of new
Adjective
  • While Deliverance follows more or less in the footsteps of Blackwater Park, Damnation digs into a strange new realm for the band, uncovering something even darker.
    — Sam Goldner, Pitchfork, 19 July 2026
  • Downstate, the threat of black vultures still feels new and strange.
    — Andrew Carter, Chicago Tribune, 19 July 2026
Definition of strange
Adjective
  • For families, this can feel like entering unfamiliar terrain.
    — Avni Trivedi, CNN Money, 21 July 2026
  • None of these ideas is unfamiliar on its own, but their combination is aimed at a clear use case—a premium folder that feels comfortable enough for everyday carry and capable enough for more serious cutting.
    — New Atlas, New Atlas, 21 July 2026
Definition of unfamiliar
Adjective
  • Add a bit of garlic and fresh herbs and the sauce is even better.
    — Kate Williams, AJC.com, 20 July 2026
  • The painful memory of the last citywide revaluation in 2021 is still fresh, with a broad cross-section of homeowners experiencing real estate tax bill sticker shock as residential property values soared in the immediate aftermath of the pandemic.
    — Kenneth R. Gosselin, Hartford Courant, 19 July 2026
Definition of fresh
Adjective
  • The previous time the New York Knicks won an NBA Final, in 1973, in-game sound was basically unheard-of in basketball—too distracting for players and fans.
    — Ellen Cushing, The Atlantic, 17 July 2026
  • The phenomenon reflects the recent evolution of the venture capital industry, the emergence of two extraordinary companies that have raised unheard-of sums of money, and the wide-open competition among them and others in AI.
    — Paresh Dave, Wired News, 5 June 2026
Definition of unheard-of
Adjective
  • The burn box was found unopened in its original box and was not tested by evidence technicians.
    — Jason Kravarik, CNN Money, 25 July 2026
  • During the panel, del Toro teased a documentary that explores the process of creating the original film, which features appearances and commentary from Jacob Elordi, Cate Blanchett and Charlie Day.
    — Tanya Fedak, Variety, 25 July 2026
Definition of original

Browse Nearby Words

unpopularity
unprecedented
unpredictability
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Cite this Entry

“Unprecedented.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unprecedented. Accessed 26 Jul. 2026.

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Nglish: Translation of unprecedented for Spanish Speakers

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