adjective, dumber, dumbest.
lacking intelligence or good judgment; stupid; dull-witted.
lacking the power of speech (offensive when applied to humans):
a dumb animal.
temporarily unable to speak:
dumb with astonishment.
refraining from any or much speech; silent.
made, done, etc., without speech.
lacking some usual property, characteristic, etc.
performed in pantomime; mimed.
Computers. pertaining to the inability to do processing locally:
A dumb terminal can input, output, and display data, but cannot process it.
Compare (def 4).
dumb down, Informal. to make or become less intellectual, simpler, or less sophisticated:
to dumb down a textbook; American movies have dumbed down.
lacking the power to speak, either because of defects in the vocal organs or because of hereditary deafness
lacking the power of human speech: dumb animals
temporarily lacking or bereft of the power to speak: struck dumb
refraining from speech; uncommunicative
producing no sound; silent: a dumb piano
made, done, or performed without speech
(of a projectile or bomb) not guided to its target
Old English dumb “silent, unable to speak,” from PIE *dheubh- “confusion, stupefaction, dizziness,” from root *dheu- (1) “dust, mist, vapor, smoke,” and related notions of “defective perception or wits.”
The Old English, Old Saxon (dumb), Gothic (dumbs), and Old Norse (dumbr) forms of the word meant only “mute, speechless;” in Old High German (thumb) it meant both this and “stupid,” and in Modern German this latter became the only sense. Meaning “foolish, ignorant” was occasionally in Middle English, but modern use (1823) comes from influence of German dumm. Related: dumber; dumbest.
Applied to silent contrivances, hence dumbwaiter. As a verb, in late Old English, “to become mute;” c.1600, “to make mute.” To dumb (something) down is from 1933.
Stupid; mentally sluggish; dim: You think I’m pretty dumb, don’t you? (1823+)
damn, darn (1787+)
[fr Pennsylvania German dumm]
from natural infirmity (Ex. 4:11); not knowing what to say (Prov. 31:8); unwillingness to speak (Ps. 39:9; Lev. 10:3). Christ repeatedly restored the dumb (Matt. 9:32, 33; Luke 11:14; Matt. 12:22) to the use of speech.
[duhm-boh] /ˈdʌm boʊ/ Slang. noun, plural dumbos. 1. a stupid person: a class full of dumbos. adjective 2. stupid or foolish: What a dumbo idea! /ˈdʌmbəʊ/ noun (pl) -bos 1. (slang) a slow-witted unintelligent person noun Down Under the Manhattan Bridge Overpass (Manhattan neighborhood)
- Dumb quotes
noun straight quotation marks, as compared to curved smart quotes Examples If you import text or copy-and-paste from another application, you may have to replace the dumb quotes manually.
noun, Nautical. 1. a block having no sheave or other part rolling with the movement of a line. 2. a groove in a spar or other timber, through which a rope can slide.
/ˈdʌmˌʃɪt/ noun 1. a stupid person adjective 2. extremely stupid noun Stupid; cretinoid, Dufus: Yeah, right. Dumbshit, two-term Reagan (1960s+)