dumbadjective
uk/dʌm/us/dʌm/dumb adjective (SILENT)
C1 permanently or temporarily unable to speak:
He's been deaf and dumb since birth.
She was struck dumb by what she had seen.
dumb adjective (STUPID)
B2 mainly US informal stupid :
Are they brave or just dumb?
What a dumb idea!
Thesaurus: synonyms and related words
Stupid and silly
- (as) thick as two short planks idiom
- absurd
- adolescent
- against your better judgment idiom
- asinine
- be crazy about sb/sth idiom
- certifiable
- dotty
- dozy
- drink, laugh, etc. yourself silly idiom
- drivel
- empty-headed
- gibber
- loony
- loopy
- lumpen
- lumpish
- madcap
- slow
- wrongheaded
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dumbness
noun [ U ] uk/ˈdʌm.nəs/us/ˈdʌm.nəs/