lightness

1 the state or quality of having little weight the first thing I noticed about the little bird was its lightness; I could hardly tell I was holding it in my hand Synonyms slightness, weightlessness Related Words airiness, delicacy, ethereality, etherealness; flimsiness, fluffiness, insubstantiality Near Antonyms solidity, solidness, substantiality Antonyms heaviness, heftiness, massiveness, ponderousness, weightiness

2 a lack of seriousness often at an improper time the inappropriate lightness of the anchorman's tone while he was reading the story of the freak accident in which people had died Synonyms facetiousness, flightiness, flippancy, frivolousness, frothiness, levity, light-headedness, light-mindedness, lightness, sillinessRelated Words cheer, cheerfulness, festivity, gaiety (also gayety), glee, gleefulness, high-spiritedness, hilarity, joviality, lightheartedness, merriment, mirth, mirthfulness; childishness, goofiness, puerilityNear Antonyms dejection, depression, despondency, dispiritedness, downheartedness, gloom, gloominess, heartsickness, joylessness, melancholy, mopes, moroseness, sadness, sullenness, unhappinessAntonyms earnestness, gravity, seriousness, soberness, solemnity, solemnness

the quality or state of having or giving off light the photographer was concerned that the lightness of the background would cast the main subject into shadow Synonyms brightness, brilliancy, candor, dazzle, effulgence, illumination, lambency, lightness, luminance, luminosity, luminousness, luster (or lustre), lustrousness, radiance, refulgence, splendorRelated Words blaze, flare, flash, flicker, light; fluorescence, incandescence, luminescence; burnish, gloss, polish, sheen, shine, shininess; fire, flame, glare, glow; flash, gleam, glimmer, glint, glisten, glitter, scintillation, shimmer, sparkle, twinkleNear Antonyms dimness, gloominess, somberness; cloudiness, haziness, murkiness, obscureness, obscurity; colorlessness, grayness, lackluster, paleness, shadiness, shadowinessAntonyms blackness, dark, darkness, dullness (also dulness), duskiness