unprecedented

[ uhn-pres-i-den-tid ]
/ ʌnˈprɛs ɪˌdɛn tɪd /

adjective

without previous instance; never before known or experienced; unexampled or unparalleled: an unprecedented event.

Nearby words

  1. unposed,
  2. unpracticable,
  3. unpractical,
  4. unpracticed,
  5. unpractised,
  6. unpredictable,
  7. unprejudiced,
  8. unpremeditated,
  9. unprepared,
  10. unprepossessing

Origin of unprecedented

First recorded in 1615–25; un-1 + precedent + -ed2

Related formsun·prec·e·dent·ed·ly, adverbun·prec·e·dent·ed·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unprecedented


British Dictionary definitions for unprecedented

unprecedented

/ (ʌnˈprɛsɪˌdɛntɪd) /

adjective

having no precedent; unparalleled
Derived Formsunprecedentedly, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unprecedented

unprecedented

adj.

1620s, from un- (1) "not" + precedented. In common use from c.1760.

Online Etymology Dictionary, © 2010 Douglas Harper