halfwit
Halfwit (noun) means a foolish or stupid person (informal and rather insulting). Example: “Only a halfwit would leave the car running with the keys inside.”
How to use halfwit
Learner’s notesIn plain EnglishA dismissive word for someone acting foolishly.
Informal and insulting — avoid it in polite or professional writing.
Word forms
- Plural
- halfwits
Fill the gap
Can you complete this real example?
Only a _____ would leave the car running with the keys inside.
Etymology
From half + wit, first recorded in the early 1600s — someone with only "half" of the mental sharpness expected.