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noun

nitwit

NIHT-wiht
noun
1
A foolish or scatterbrained person.
"Only a nitwit would leave the car running with the keys inside."
"Stop acting like a nitwit and read the instructions."

How to Use Nitwit

Learner’s notes

In plain EnglishAn informal, mildly insulting word for someone acting foolishly.

When to use it

Informal and a bit old-fashioned, but still understood and used affectionately in some contexts.

Common pairings
act like a nitwit a total nitwit

Word Forms

nitwits plural

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Only a _____ would leave the car running with the keys inside.

Etymology

First recorded in the US in the 1910s, likely from German or Yiddish dialect words for "nothing" combined with "wit."

Definitions: FreeDict original editorial