Find Synonyms
nutso Synonyms
Another word for nutso
Choosing another word for nutso depends on context, so the 12 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
• adjective (Context 1)
Crazy, foolish, eccentric, or mentally unbalanced (used in informal or slang contexts).
Usage Example
"The traffic downtown during the holiday parade was completely nuts."
Strongest
nuts
crazy
bonkers
loony
Strong
bizarre
eccentric
• noun (Context 2)
A crazy, eccentric, or irrational person.
Usage Example
"He drives like a total nutcase whenever he is running late for work."
Strongest
nutcase
Strong
weirdo
crackpot
oddball
lunatic
maniac
Opposites of nutso
The opposite of nutso shifts depending on context. Common opposites include:
sane
sensible
rational
reasonable
level-headed
Cite this Entry
Wordmom. (2026). Synonyms for Nutso. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/nutso