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nutso

nutso

1 9.5
Mentally unstable and likely to act in a wild, strange way
  • adjective
  • /ˈnʌt.soʊ/
  • Slur
translation icon : tarado
  • The story he told about his trip to the moon sounded nutso to everyone in the room.

Examples

  • His behavior at the party was completely nutso, screaming and dancing on the tables.

  • Which is good, because this price is nutso.

    Blog text (8)
  • And his economic policies are nutso.

    Blog text (22)
  • How we gonna figure out who's really nutso and who's just having a bad week?

  • People thought it was nutso when she decided to quit her job and travel the world without any plans.

Synonyms

nutty
vsnutso
  • Informal
55 7.2

Being a little crazy in a funny or strange way

is harsher and implies more serious mental instability or irrational action
maniacal
vsnutso
19 8.6

Very wild and out of control, seeming crazy

is used for frenzied behavior rather than general mental instability
batshit
vsnutso
  • Offensive
16 9.9

An informal word for very crazy and hard to believe

is similarly pejorative but less extreme in degree
raving mad
vsnutso
  • Informal
7 7.2

Acting or speaking in a wild, not sensible way

is less intense and more general about mental instability
crazed
vsnutso
1 5.0

Acting in a wild and uncontrolled way

is broader meaning general mental unsteadiness rather than frantic action
nutty as a fruitcake
vsnutso
  • Informal
1 9.0

Very strange and silly in a way that seems crazy

is less idiomatic and more direct about mental instability
insane in the membrane
vsnutso
  • Slang
1 9.8

Acting or feeling very silly and not thinking clearly, often as a joke

is more playful and exaggerated than the straightforward pejorative form
loco
vsnutso
  • Offensive
1 9.9

Not behaving in a normal or sensible way

is more pejorative and centers on mental instability rather than oddity
nuts
vsnutso
  • Offensive
8.6

Very crazy or doing things that show bad judgment

is the pejorative variant with a more playful ending
bonkers
vsnutso
  • Informal
8.0

Acting or feeling very strange

is more strongly pejorative and may imply deeper mental instability
meshugana
vsnutso
  • Offensive
9.9

Very silly or clearly crazy

is more general English not tied to a cultural or dialectal tone
meshuggah
vsnutso
  • Slang
9.9

Feeling very silly or crazy in a funny way

is less affectionate and more plainly pejorative about instability
meshugga
vsnutso
  • Slang
9.9

Acting very silly and not thinking clearly

is stronger about real mental instability rather than mere foolishness
cracked
vsnutso
  • Offensive
7.4

Someone who acts a little crazy

is stronger and suggests wild irrational behavior rather than mild imbalance

Antonyms

119 3.2

Having a healthy mind and able to think clearly

Compounds

nutso idea
  • Slang
9.3

An idea that seems crazy or very unusual

How Crazy

insane
  • Slur
524 4.0
nutso
  • Slur
1 9.5
nutty
  • Informal
55 7.2
odd
798 1.0

Surface Forms

nutso positive

Morphology

nutso = nut (semi-transparent) = nut + so

The meaning is clearly built on 'nut' (crazy person) but the informal suffix '-so' is non‑productive and carries slang/pejorative nuance, so learners can guess the core meaning but not all pragmatic nuances.

Etymology

Nutso comes from the slang nut, which means 'crazy' or 'odd', with a strong -so ending to make it sound worse. So, calling someone nutso suggests they are mentally unstable or acting wildly and can be hurtful.