idiot - definition and synonyms

 
noun [countable] 

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/ˈɪdiət/
singularidiot
pluralidiots
  1. 1
    informal someone who behaves in an extremely stupid way

    Give that back, you idiot!

    You get a lot of idiots on the road at this time of night.

    Diana suddenly realized what an absolute idiot she had been.

  2. 2
    offensive an old word meaning ‘someone with a mental illness or a very low level of intelligence