disillusioned

/ˌdɪsɪˈluʒənd/
adjective
  1. Disappointed because you have discovered that someone or something is not as good as you believed.
    • He grew disillusioned with the corporate world and quit his job.
    • She felt disillusioned when her hero turned out to be dishonest.
    • After the scandal, many voters became disillusioned with politics.
What does "disillusioned" mean? | whatsthatwordmean | whatsthatwordmean