Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “un-American”

un-American

adjective     /ˌʌn.əˈmer.ɪ.kən/ US disapproving
guilty of activities , behaviour , or beliefs that show opposition or no loyalty to the US and its political system : From 1940 to 1943, he was general counsel of the House committee investigating un-American activities .United States politics and governmentDisloyalty, betrayal and treason
(Definition of un-American adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of un-American

Definitions of “un-American” in other dictionaries

Translations of “un-American”

Word of the Day

honeymoon

a holiday taken by a couple immediately after their marriage

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