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Definition of nutso

nutso

/ˈnʌt.soʊ/
nut · so
Plural:nutsos
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nutso Lexical Profile

nutso Game Scores & Validity

• adjective

1

North American Crazy, foolish, eccentric, or mentally unbalanced (used in informal or slang contexts).

Example

"The traffic downtown during the holiday parade was completely nutso."

Synonyms
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Antonyms
View all antonyms for nutso

• noun

1

North American A crazy, eccentric, or irrational person.

Example

"He drives like a total nutso whenever he is running late for work."

Synonyms
View all synonyms for nutso

• Rhymes for nutso

• Nearby Words

nuts
nutsack
nutshell
nutso
nutsy
nutter
nuttiness

Word Origin & Etymology

Originated in mid-20th-century American slang by combining the colloquial adjective 'nuts' (meaning crazy) with the expressive slang suffix '-o'.

Cite this Entry

Wordmom. (2026). Definition of Nutso. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/nutso
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