Moron
//mo(ː)ɹɒn// name, noun, slang
name, noun, slang ·Common ·Middle school level
Definitions
Noun
- 1 A stupid person; an idiot; a fool. derogatory, informal
"Mr. Borelli, Mr. Borelli, with all due respect, you're such a fantastic moron it's terrifying."
- 2 a person of subnormal intelligence wordnet
- 3 A person of mild mental subnormality in the former classification of mental retardation, having an intelligence quotient of 50–70. dated
- 4 A hypothetical particle whose existence and configuration can make a moral judgment true.
Proper Noun
- 1 A commune in southwestern Haiti.
Example
More examples"Today, looking at this web page, I realized that if these people are idiots then I must be a complete moron."
Etymology
Coined by American psychologist Henry H. Goddard in 1910, from Ancient Greek μωρόν (mōrón), the neuter form of μωρός (mōrós, “foolish, dull”). Coined in the third sense by philosopher Ronald Dworkin.
Related phrases
More for "moron"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.