solemnness

a mental state free of jesting or trifling laid the wreath at the Tomb of the Unknown Soldier with all the solemnness that the occasion requires Synonyms earnest, graveness, gravity, intentness, serious-mindedness, seriousness, soberness, sobriety, solemnity, earnestness, staidnessRelated Words gravitas, humorlessness; decisiveness, deliberation, determination, firmness, purposefulness, resoluteness, resolve; absorption, attentiveness, concentration, engrossment, enthrallment, immersion, intensityNear Antonyms lightness, shallowness, superficiality; dalliance, dilettantism; cheerfulness, gaiety (also gayety), glee, high-spiritedness, merriment, mirthAntonyms facetiousness, flightiness, flippancy, frivolity, frivolousness, levity, lightheartedness, lightness, play, unseriousness