Definition, Meaning & Synonyms
knucklehead
noun
/ˈnʌkəlˌhɛd/

Definition
A foolish or stupid person.

Examples
- Don’t be such a knucklehead; think before you make a decision.
- He called himself a knucklehead for forgetting his keys again.
- Sometimes, even the smartest people can act like a knucklehead.

Meaning
Knucklehead is a slang term used to describe someone who acts unwisely or takes silly actions, often without thinking.

Synonyms
- fool
- dummy
- simpleton
- blockhead
- nincompoop