disillusioned
US /ˌdɪs.ɪˈluː.ʒənd/
UK /ˌdɪs.ɪˈluː.ʒənd/
1.
disappointed in someone or something that one discovers to be less good than one had believed
:
•
She became disillusioned with politics after the scandal.
•
Many young people feel disillusioned with the current economic system.