dullness Synonyms

bluntness obtuseness stupefaction stubbiness stolidness stolidity sterility staleness sopor somnolence somberness smokiness stupidity stupor unconcern toupee torpor torpitude torpidness torpidity torpescence tiredness tedium tardiness slowness sloth sleepiness pedestrianism passivity passiveness passableness paralysis pandiculation pallidity paleness oscitation phlegm pococurantism ponderousness silveriness shadowiness segnity sandman sameness sallowness remissness prostration prosiness oscitancy speechlessness