UNPRECEDENTED

Pronunciation (US):

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 Dictionary entry overview: What does unprecedented mean? 

• UNPRECEDENTED (adjective)
  The adjective UNPRECEDENTED has 1 sense:

1. having no precedent; novel

  Familiarity information: UNPRECEDENTED used as an adjective is very rare.

 Dictionary entry details 

• UNPRECEDENTED (adjective)

Sense 1

Meaning:

Having no precedent; novel

Context example:

an unprecedented expansion in population and industry

Similar:

new; unexampled (having no previous example or precedent or parallel)

Antonym:

precedented (having or supported or justified by a precedent)

 Context examples 

For NASA's human scientists watching from the ground, Curiosity offers an unprecedented window to answer some questions.

(Martian Dust Storm Grows Global: Curiosity Captures Photos of Thickening Haze, NASA)

And again the unprecedented was established.

(The Sea-Wolf, by Jack London)

Fanny, in dismay at such an unprecedented question, did not know which way to look, or how to be prepared for the answer.

(Mansfield Park, by Jane Austen)

He did not know what to do, it was all so unprecedented.

(White Fang, by Jack London)

The results provide unprecedented detail of our genetic history, and highlights how it is characterised by multiple layers of complexity.

(Global human genome study reveals our complex evolutionary history, University of Cambridge)

In the future, this observing technique can be applied to different types of stars to study their surfaces and atmospheres in unprecedented detail.

(Best Ever Image of a Star’s Surface and Atmosphere, ESO)

The study was an unprecedented global effort by over 200 scientists who work with the Psychiatric Genomics Consortium.

(Forty-Four Genomic Variants Linked to Major Depression, The Titi Tudorancea Bulletin)

The VIMOS Ultra-Deep Survey provides an unprecedented 3D map of the distribution of over 10 000 galaxies in the distant Universe.

(Largest Galaxy Proto-Supercluster Found, ESO)

An unprecedented belt of brown algae stretches from West Africa to the Gulf of Mexico—and it’s likely here to stay.

(Satellites Find Biggest Seaweed Bloom in the World, NASA)

This type of pediatric medication—developed through nanoparticles—is unprecedented in history.

(New HIV medicine under development for children in Brazil, Agência Brasil/EBC)