Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “opaque”


adjective     /əʊˈpeɪk/
NOT SEE If an object or substance is opaque, you cannot see through it.Opaque
NOT UNDERSTAND formal difficult to understandDifficult to understandComplicated and difficult to doPuzzle and confuse
(Definition of opaque adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “opaque” in other dictionaries

Word of the Day


friendly or helpful

Word of the Day


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