disillusioned adj.
VERBS be, feel | become, get, grow
ADV. extremely, very | completely, thoroughly, totally, utterly | increasingly | rather | sadly If the king had hoped for peace, he was to be sadly disillusioned.
PREP. by They felt bitter and disillusioned by the decision. | with Later in life he grew rather disillusioned with communism.
You can also check other dicts: disillusioned (English, 中文解释 ), wordnet sense, Collins Definition