The Open Dictionary

disillusioned

adjective

UK/ˌdɪs.ɪˈluː.ʒᵊnd/
US/ˌdɪs.ɪˈluː.ʒᵊnd/

Definitions of disillusioned adjective

  1. C2

    Having lost one's illusions or hopes; disappointed that something is not as good as one had believed.

    • After experiencing multiple failures, he became a disillusioned man.

    • Many voters are thoroughly disillusioned with the political system.

    • The company's internal bureaucracy has left many employees feeling disillusioned.