Synonyms and related words :
big deal, emptiness, flimsiness, foolishness, frivolity, frivolousness, futility, idleness, inanity, levity, lightness, nugacity, overreaction, shallowness, silliness, slenderness, slightness, superficiality, triflingness, triteness, triviality, trivialness, vacuity, vanity, vapidity|