The Oxford Thesaurus An A-Z Dictionary of Synonyms - vanityn.

1) conceit, conceitedness, egotism, narcissism, arrogance, cockiness, self-importance, vainglory, haughtiness, pride, self-admiration, self-worship, Colloq swell-headedness, big-headedness: It is disgraceful what some people do to satisfy their vanity. 2) vainness, emptiness, hollowness, worthlessness, futility, unreality, bootlessness, pointlessness, uselessness, folly, vapidity, silliness, vacuousness, vacuity, foolishness, fatuity, frivolousness: The vanity of trying to complete the book in a year must be obvious by now.