When you disillusion someone, you take away a false belief, or an illusion. Your parents' divorce might disillusion your romantic ideas of marriage, and a political candidate you supported enthusiastically could disillusion if she doesn't follow through on her promises.

Who is a disillusioned person?

People who are disillusioned have lost their illusions. This is usually meant in a negative way, as disillusioned people tend to be a little bitter. When you're disillusioned, you're wiser but not necessarily happier: you've learned from experience that life isn't always how you'd like it to be.

How do you use disillusion in a sentence?

1) I'd hate to be the one to disillusion him. 2) I hate to disillusion you, but your chances of winning are practically zero. 3) I hate to/I'm sorry to disillusion you, but pregnancy is not always wonderful - I was sick every day for six months. 4) There is disillusion with established political parties.