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dumb

dumb

 
 
pronunciation:
duhm
part of speech: adjective
inflections: dumber, dumbest
definition 1: (informal) not smart; stupid.
It was a dumb idea to cut your own hair.Her brother says she's dumb, but I think she's smart.
synonyms:
stupid
antonyms:
clever, intelligent, smart
similar words:
dull, silly, simple, slow, thick
definition 2: not able to speak.
She has been deaf and dumb since childhood.
derivations: dumbly (adv.), dumbness (n.)