flightiness

1 a lack of seriousness often at an improper time a warning that her usual flightiness wouldn't be tolerated at the ceremony honoring war veterans Synonyms of flightiness facetiousness, frivolity, flippancy, frivolousness, frothiness, levity, light-headedness, light-mindedness, lightness, sillinessWords Related to flightiness cheer, cheerfulness, festivity, gaiety (also gayety), glee, gleefulness, high-spiritedness, hilarity, joviality, lightheartedness, merriment, mirth, mirthfulness; childishness, goofiness, puerilityNear Antonyms of flightiness dejection, depression, despondency, dispiritedness, downheartedness, gloom, gloominess, heartsickness, joylessness, melancholy, mopes, moroseness, sadness, sullenness, unhappinessAntonyms of flightiness earnestness, gravity, seriousness, soberness, solemnity, solemnness

2 a state of nervousness marked by sudden jerky movements his flightiness before the bar exam was so bad that he nearly made himself sick Synonyms of flightiness edginess, fidgetiness, fidgets, jumpiness, jitteriness, restiveness, skittishnessWords Related to flightiness agita, agitation, anxiety, anxiousness, apprehension, apprehensiveness, disquiet, feverishness, franticness, freneticism, hand-wringing, perturbation, restlessness, trepidation, unease, uneasiness, upset, worry; nerves, tenseness, tension; butterflies, dither, heebie-jeebies, jimjams, jitters, shakes, shivers, williesNear Antonyms of flightiness confidence, self-assurance, self-confidence, sureness; control, self-control; aplomb, calm, calmness, collectedness, composure, coolness, ease, easiness, equanimity, equilibrium, imperturbability, poise, repose, self-possession, tranquillity (or tranquility), tranquilness