dis‧il‧lu‧sion /ˌdɪsəˈluːʒ
ən, ˌdɪsɪˈluːʒ
ən/
verb [transitive] to make someone realize that something which they thought was true or good is not really true or good:
I hate to disillusion you, but I don’t think she’s coming back. [TahlilGaran] Dictionary of Contemporary English ▲