痴心妄想

痴心妄想 [chī xīn wàng xiǎng]

1. ■ fond dream; daydreaming; an idle dream; a pipe dream; a silly notion; aspire [hanker] after the impossible; be infatuated with and indulge in vain hopes; be obsessed with (some) wild [fantastic] ideas; be only daydreaming; cry for the moon; foolish exaggerated hopes; get [wring] water from a flint;go on a wild-goose chase; hitch one's wagon to a star; hope vainly for; silly and fantastic; (be nothing more than) wishful thinking; You must be out of your mind!:

“不要痴心妄想!” “Don't kid yourself!”