NSW Opportunity Class
Disillusion
verb/dis-ih-LOO-zhuhn/
To make someone realise that something they believed in is not as good or true as they thought.
In contextLosing every match disillusioned him about the club he had loved.
Remember it
Dis- (undo) + illusion: it undoes a happy illusion and shows the plain truth.
Use it well
Often used as 'disillusioned with/by'; suggests lost hope after seeing reality.