disillusioned

US /ˌdɪs.ɪˈluː.ʒənd/
UK /ˌdɪs.ɪˈluː.ʒənd/
"disillusioned" picture
1.

幻滅した, 失望した

disappointed in someone or something that one discovers to be less good than one had believed

:
She became disillusioned with politics after the scandal.
彼女はスキャンダルの後、政治に幻滅した
Many young people feel disillusioned with the current economic system.
多くの若者が現在の経済システムに幻滅している