Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “disillusion”


verb [T]    /ˌdɪs·əˈlu·ʒən/
to disappoint someone by making the person realize the unpleasant truth about something or someone thought to be good: He’s become disillusioned with his job and the company. disillusioned    /ˌdɪs·əˈlu·ʒənd/ adjective He died a disillusioned man. disillusionment    /ˌdɪs·əˈlu·ʒən·mənt/ noun [U]
(Definition of disillusion verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of disillusion

Definitions of “disillusion” in other dictionaries

Word of the Day


willing to give money, help, kindness, etc., especially more than is usual or expected

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