dumbness

1 incapacity for or restraint from speaking the determined dumbness of the accountants who tally the votes for the Academy Awards Synonyms silence, muteness, speechlessness, stillnessRelated Words inarticulacy, inarticulateness, voicelessness; reserve, reticence, reticency, taciturnityNear Antonyms communication, speaking, talking; eloquence, fluency, volubility; chattiness, garrulousness, loquaciousness, loquacity, talkativeness, talkiness; verboseness, verbosity, windiness, wordiness

2 the quality or state of lacking intelligence or quickness of mind couldn't believe the dumbness of the people who fell for that scam Synonyms boneheadedness, brainlessness, denseness, density, dim-wittedness, doltishness, dopiness, dorkiness, dullness (also dulness), stupidity, fatuity, foolishness, gormlessness [chiefly British], mindlessness, oafishness, obtuseness, senselessness, simpleness, slowness, stupidness, thickness, vacuity, weak-mindedness, witlessnessRelated Words feeblemindedness, simplemindedness; absurdity, asininity, balminess, craziness, daftness, dippiness, dottiness, fatuousness, folly, idiocy, inaneness, inanity, insanity, lunacy, madness, nincompoopery, nonsensicalness, nuttiness, preposterousness, silliness, simplicity, wackiness, zaniness; fallacy, irrationality, unreasonableness; mental deficiency, mental retardationNear Antonyms acumen, alertness, astuteness, discernment, insight, judgment (or judgement), perception, percipience, perspicacity; sagacity, sageness, sapience, wisdom, wit; logicality, logicalness, rationality, rationalness, reasonableness, soundness, validityAntonyms braininess, brightness, brilliance, cleverness, intelligence, keenness, quickness, quick-wittedness, sharpness, smartness