Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “unknown”

unknown

adjective     /ʌnˈnəʊn/ US  /-ˈnoʊn/
B1 not known or familiar: The exact number of people carrying the virus is unknown. As recently as six months ago her name was almost unknown in Britain. Unknown to me, she'd organized a party for my birthday.Unknown and unfamiliar
(Definition of unknown adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of unknown

Definitions of “unknown” in other dictionaries

Word of the Day

pump iron

to lift heavy weights for exercise

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More