dullness Synonyms - page 4

lethargy lentor lenitude laziness lassitude monotony morbidity muckiness opacity obscureness obliquity numbness narcosis muteness murkiness mundanity muddiness languor insouciance insipidness inarticulateness inappetency inanimation inanimateness inactivity imperception impenetrableness impassivity impassibleness inarticulation incomprehensibility incuriosity insipidity insensibleness insensibility infertility infecundity inertness inertia indolence indifference impassibility