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English definition of “dumb”


adjective (STUPID)    /dʌm/ mainly US informal
B2 stupid and annoying: Are they brave or just dumb? What a dumb idea!Stupid and sillyOf unsound mind dumbness     /ˈdʌm.nəs/ noun [U] Handicap and the disabled
(Definition of dumb adjective (STUPID) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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