unprecedented

[uhn-pres-i-den-tid]

adjective

1. without previous instance; never before known or experienced; unexampled or unparalleled.

   an unprecedented event.

   Synonyms: novel, exceptional, extraordinary, unique

unprecedented

/ ʌnˈprɛsɪˌdɛntɪd /

adjective

1. having no precedent; unparalleled

Other Word Forms

• unprecedentedly adverb
• unprecedentedness noun

Word History and Origins

Origin of unprecedented¹

First recorded in 1615–25; un- ¹ + precedent + -ed ²

Example Sentences

The past four weeks have been unprecedented in Washington, D.C.’s history.

From Salon

Although the award was massive and unprecedented, it could have been much worse, according to some calculations.

From Los Angeles Times

The board's unprecedented pay proposal comes just months after it was forced to deny reports that it was looking to replace Musk.

From BBC

The move was "unprecedented" and could pave the way for more businesses to enter the Asian market, said Mr Portes.

From BBC

So too does an understanding of the broader UK political landscape, one in which a fragmentation of the vote away from the main parties is offering Reform an unprecedented opportunity.

From BBC

Related Words

• bizarre 
• extraordinary 
• fantastic 
• miraculous 
• new 
• remarkable 
• singular 
• uncommon 
• unheard-of 
• unique 
• unparalleled 
• unrivaled 
• unusual