Definition of dumb:
reserved, simple, close, pinheaded, boneheaded, lamebrain, thudding, thick, airheaded, handicap, unsounded, ability, wearisome, bonehead, understood, dim, disablement, slow-witted, tiresome, astonished, thunderstruck, astounded, psyched, leaden, tacit, the blind, tedious, senseless, muted, dull, staggered, dimmed, bubbleheaded, lunkheaded, tight-lipped, dimwitted, unarticulate, dorky, boring, bleak, brain-dead, ho-hum, unspoken, developmental disability, unsmart, reticent, uncommunicative, empty-headed, laconic, shadowy, closemouthed, chuckleheaded, shocked, weak-minded, challenged, vacuous, wispy, dense, softheaded, deadening, impenetrable, wordless, speechless, obtuse, faint, thickheaded, gormless, accessible, aphonic, soft, hebetudinous, slow, purblind, feeble-minded, opaque, unintelligent, words, softened, amazed, simple-minded, vague, birdbrained, ataxia, silly, surprised, oafish, inarticulate, tongueless, disability, irksome, black, disabled, mindless, lost for words, stupid, muffled, knuckleheaded, subdued, witless, dunderheaded, fatuous, heavy, silent, mute, sluggish, thick-witted.
- dumb (part of speech: adjective)
- silent (part of speech: adjective)
foolish (part of speech: adjective)
- "One Maid's Mischief", George Manville Fenn.
- "Rose MacLeod", Alice Brown.
- "Annie Kilburn A Novel", W. D. Howells.