- 1a rude way to describe a person that you think is very stupid synonym idiot They behaved like imbeciles.
- 2(old-fashioned) (offensive) a person who has a very low level of intelligence
imbecile remarks
NAmE//ˌɪmbəˈsɪləti//
noun [uncountable, countable]See imbecile in the Oxford Advanced Learner's DictionaryCheck pronunciation: imbecile