imbecile - definition and synonyms

noun [countable] 

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/ˈɪmbəsiːl/
singularimbecile
pluralimbeciles
  1. 1
    an insulting word for someone who behaves in a very stupid way

derived words

imbecilic

 

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/ˌɪmbəˈsɪlɪk/
adjective

imbecility

 

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/ˌɪmbəˈsɪləti/
noun [uncountable]