unprecedented

pronunciation

How to pronounce unprecedented in British English: UK [ʌnˈpresɪdentɪd]word uk audio image

How to pronounce unprecedented in American English: US [ʌnˈpresɪdentɪd] word us audio image

  • Adjective:
    having no precedent; novel

Word Origin

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

Antonym

Example

1. This is a social experiment on an unprecedented scale .
2. We are losing biodiversity at an unprecedented rate .
3. This law appears to be unprecedented .
4. In some chinese provinces the ratio is an unprecedented 130 to 100 .
5. The bust , by contrast , dragged new construction to unprecedented depths .

more: >How to Use "unprecedented" with Example Sentences