dumb

[ duhm ]
/ dʌm /

adjective, dumb·er, dumb·est.

Verb Phrases

dumb down, Informal. to make or become less intellectual, simpler, or less sophisticated: to dumb down a textbook; American movies have dumbed down.

Origin of dumb

before 1000; Old English; cognate with Old Norse dumbr, Gothic dumbs, Old Saxon dumb, Old High German tump, German dumm

OTHER WORDS FROM dumb

dumb·ly, adverbdumb·ness, nounqua·si-dumb, adjectivequa·si-dumb·ly, adverb

usage note for dumb

Dumb in the sense “lacking the power of speech” is perceived as insulting when describing humans (but not animals), probably because dumb also means “stupid; dull-witted.” The noun dummy in the sense “person who lacks the power of speech” is also perceived as insulting, as are the terms deaf-and-dumb, deaf-mute, and mute. The adjective hearing-impaired is acceptable though not the term of choice, partly because it lacks directness. The preferred term is deaf, which makes no reference to an inability to speak or communicate; the capitalized Deaf signals membership in this community.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dumbest

British Dictionary definitions for dumbest

dumb
/ (dʌm) /

adjective

Derived forms of dumb

dumbly, adverbdumbness, noun

Word Origin for dumb

Old English; related to Old Norse dumbr, Gothic dumbs, Old High German tump
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012