1. (n.) Frivolity; inappropriate lack of gravity and seriousness in deportment or character; trifling gayety; sportiveness; vanity.
2. (n.) The quality of weighing less than something else of equal bulk; relative lightness, especially as shown by rising through, or floating upon, a contiguous substance; buoyancy; -- opposed to gravity.
3. (n.) Lack of steadiness or constancy; disposition to change; fickleness; volatility.
Thesaurus Entries
absentmindedness, absurdity, airiness, amusement, ascent, banter, big deal, booing, bounce, breeziness, bubbliness, buoyancy, carefreeness, carelessness, catcalling, chaffing, changeableness, chirpiness, coquettishness, daintiness, debonairness, delicacy, derision, disregard, disregardfulness, distraction, downiness, emptiness, ethereality, facetiousness, faddishness, faddism, fickleness, fleering, flightiness, flimsiness, flippancy, floatability, fluffiness, foaminess, folly, fooling, foolishness, frivolity, frivolousness, frothiness, fun, futility, gentleness, giddiness, glee, gleefulness, gossameriness, grinning, heedlessness, high glee, hilariousness, hilarity, hissing, hooting, idleness, inadvertence, inadvertency, inanity, inattention, inattentiveness, inconsideration, inconstancy, incuriosity, indifference, inobservance, jauntiness, jeering, jocularity, jocundity, jolliness, jollity, joshing, joviality, joy, joyfulness, joyousness, lack of weight, laughter, leering, levitation, light heart, lightheartedness, lightmindedness, lightness, lightsomeness, mercuriality, mercurialness, merriment, merriness, mirth, mirthfulness, mockery, negligence, nonobservance, nugacity, obliviousness, panning, perkiness, pertness, playfulness, prankishness, pranksomeness, ragging, raillery, rallying, razzing, regardlessness, resilience, ridicule, roasting, roguishness, scoffing, shallowness, silliness, skittishness, slenderness, slightness, smart-aleckiness, smartness, smirking, sneering, snickering, sniggering, snorting, softness, sportiveness, superficiality, taunting, tenderness, thoughtlessness, trickery, trickiness, triflingness, triteness, triviality, trivialization, trivialness, twitting, unalertness, unawareness, unconsciousness, undependability, unheaviness, unheedfulness, unintentiveness, unmindfulness, unobservance, unpredictability, unreliability, unwariness, unwatchfulness, vacuity, vanity, vapidity, volatility, waggery, waggishness, weightlessness, yeastiness
