110 Synonyms for “Crazy” with Examples | Another Word for “Crazy”

Last Updated on December 2, 2023

Exploring the different ways we can express the concept of “crazy” can be both fascinating and useful. Our language is rich with synonyms that not only help us to avoid repetition but also capture subtle nuances in meaning. When we describe a situation or a person as “crazy,” we might be referring to something that’s odd, chaotic, or beyond our understanding, but the exact word we choose can convey a lot more about our precise thoughts and feelings.

Crazy Synonyms

Another Word for Crazy | List of 100+ Synonyms for "Crazy" with ExamplesPin

What Is “Crazy”?

The term “crazy” often describes something or someone that is perceived as irrational, nonsensical, or wildly unusual. It can point to an unconventional or unorthodox pattern of behavior or thought.

List of Synonyms for Crazy

  • Insane
  • Mad
  • Lunatic
  • Unhinged
  • Deranged
  • Demented
  • Mental
  • Psychotic
  • Maniacal
  • Manic
  • Frenzied
  • Hysterical
  • Delirious
  • Frantic
  • Wild
  • Berserk
  • Bonkers
  • Loony
  • Loopy
  • Nutty
  • Nuts
  • Batty
  • Crackers
  • Cuckoo
  • Bananas
  • Barking
  • Off the wall
  • Out there
  • Wacko
  • Whacky
  • Zany
  • Kooky
  • Screwball
  • Goofy
  • Daft
  • Eccentric
  • Odd
  • Bizarre
  • Outlandish
  • Quirky
  • Peculiar
  • Offbeat
  • Freaky
  • Way-out
  • Far out
  • Off one’s rocker
  • Not all there
  • Off one’s trolley
  • Out to lunch
  • Round the bend
  • Off one’s nut
  • Out of one’s mind
  • Raving mad
  • Stark raving mad
  • Stark staring mad
  • Non compos mentis
  • Touched
  • Touched in the head
  • Giddy
  • Dizzy
  • Light-headed
  • Sappy
  • Foolish
  • Silly
  • Inane
  • Preposterous
  • Absurd
  • Ridiculous
  • Laughable
  • Clownish
  • Slaphappy
  • Harebrained
  • Featherbrained
  • Scatterbrained
  • Erratic
  • Unpredictable
  • Unconventional
  • Unorthodox
  • Uncontrollable
  • Irrepressible
  • Over the top
  • Extreme
  • Intense
  • Outrageous
  • Shocking
  • Astonishing
  • Amazing
  • Stupefying
  • Breathtaking
  • Sensational
  • Fantastic
  • Terrific
  • Tremendous
  • Phenomenal
  • Extraordinary
  • Incredible
  • Unbelievable
  • Unimaginable
  • Unthinkable
  • Unspeakable
  • Indescribable
  • Inexpressible
  • Beyond belief
  • Beyond words
  • Too much
  • Overwhelming
  • Mind-boggling
  • Mind-blowing
  • Jaw-dropping
  • Eye-popping

Types of Synonyms for Crazy

Emotionally Intense

  • Insane: Suggests a severe level of mental instability.
  • Mad: Often used to indicate extreme anger or uncontrolled behavior.

Informal and Light-hearted

  • Wacky: Conveys a sense of playful or eccentric oddness.
  • Kooky: Implies a quirky or eccentric manner.

Intensely Wild or Excitable

  • Wild: Reflects an uncontainable, untamed nature.
  • Frenzied: Connotes a hectic or hyperactive state.

Mentally Disordered

  • Lunatic: Originates from the Latin for the moon, once believed to induce madness.
  • Deranged: Suggests a disturbance in mental faculties.

Common Synonyms for Crazy 

Crazy vs. Insane

The term ‘crazy’ is often used in informal contexts, while ‘insane’ carries a more clinical connotation, traditionally used in legal and medical settings. However, both can be used interchangeably in casual speech to describe actions or ideas that are very unreasonable or unexpected.

  • He had this crazy idea that he could learn to fly without any formal training.
  • It’s simply insane to go hiking in the wilderness without a map.

Crazy vs. Mad 

‘Mad’ is a synonym for ‘crazy’ that can suggest anger in addition to irrationality, whereas ‘crazy‘ often refers to something that is bizarre or foolish.

  • She bought twenty pairs of shoes in one go, which seemed a bit crazy to us.
  • He was so mad, ranting about the most trivial issues as if the world was ending.

Crazy vs. Lunatic 

‘Lunatic’ is an older term that suggests extreme and uncontrollable mental derangement. ‘Crazy‘ is more versatile and can describe less extreme erratic behavior without the same historical baggage.

  • She’s just crazy about that band, follows them to every concert.
  • The man’s lunatic ravings frightened the bystanders.

Crazy vs. Psychotic 

While ‘crazy‘ is colloquial and non-specific, ‘psychotic’ refers to a specific psychological state involving a disconnection from reality, such as delusions or hallucinations, and is a term used in a psychiatric context.

  • Their scheme to get rich quick was not just unethical; it was crazy.
  • During his psychotic episode, he was unable to distinguish between what was real and what was imaginary.

Synonyms for Crazy in Different Contexts

Lunacy in Levity

When we’re describing something done in a playful or humorous way, words like wacky or silly often fit the bill.

  • Wacky: That game show host has a wacky sense of humor that gets us all giggling.
  • Silly: We had a silly moment today where we couldn’t stop laughing at the smallest joke.

Creative Eccentricity

In more creative or artistic contexts, we might use terms such as quirky or unconventional.

  • Quirky: Our artist friend is really quirky, always surprising us with their unusual creations.
  • Unconventional: We admire her unconventional ideas; they’re always so original and refreshing.

Intense Enthusiasm

When someone displays an exceptional level of passion or enthusiasm, fanatical or obsessed could be appropriate.

  • Fanatical: We are fanatical about our favorite football team, never missing a match.
  • Obsessed: He’s obsessed with collecting vintage cars, and he knows every detail about each model.

Irrationality and Excess

Synonyms like irrational or foolish are used when we’re referring to actions that lack reason or sensibility.

  • Irrational: We’ve all made irrational decisions at some point, like buying something we didn’t need.
  • Foolish: Skipping the safety instructions seemed foolish after we got lost during our hike.

Mental Instability

In contexts discussing mental health or stability, we should be sensitive. Unstable or disturbed can be used, ensuring we maintain respect and empathy.

  • Unstable: They referred to the character in the book as unstable, due to their unpredictable behavior.
  • Disturbed: We read about a disturbed individual in the novel who struggled to differentiate reality from his dreams.

Absolute and Near Synonyms of Crazy 

Absolute Synonyms for Crazy 

Word Definition
Insane Exhibiting a severely disordered state of mind; not sane.
Mad Mentally ill; deranged, insane.
Lunatic Affected by lunacy; wildly or giddily foolish.
Psychotic Relating to, denoting, or suffering from a psychosis.
Bonkers Crazy, mad.
Loony A crazy or silly person.
Unhinged Mentally unbalanced; deranged.

Near Synonyms for Crazy 

Word Definition
Bizarre Very strange or unusual.
Eccentric (Of a person or their behavior) unconventional and slightly strange.
Outlandish Looking or sounding bizarre or unfamiliar.
Whacky Amusingly unconventional and idiosyncratic.
Erratic Not even or regular in pattern or movement; unpredictable.
Zany Amusingly unconventional and idiosyncratic.
Quirky Characterized by peculiar or unexpected traits.

Synonyms for Crazy with Examples | Infographic

Another Word for Crazy | List of 100+ Synonyms for "Crazy" with ExamplesPin

Frequently Asked Questions

What are some slang terms for ‘crazy’?

We might use words like ‘bonkers’, ‘nuts’, or ‘looney’ when we’re looking for slang terms that convey ‘crazy’.

Can you list some humorous synonyms for ‘crazy’?

Humorous alternatives include ‘wacko’, ‘batty’, or ‘kooky’, each adding a lighthearted twist to the description.

What are alternative words for describing a zany or eccentric girl?

For a zany or eccentric girl, we could describe her as ‘quirky’, ‘whimsical’, or ‘offbeat’. These words gently highlight her unique character without negative connotations.

How might you refer to someone who is perceived as crazy in a casual conversation?

In casual conversation, we might say someone is ‘cracked’, ‘freaky’, or ‘out there’ to suggest they’re perceived as crazy in a non-serious manner.

Is there a positive term for someone who is ‘crazy’ in a good way?

Yes, we could use ‘eccentric’ or ‘unconventional’ as positive terms. These suggest a refreshing break from the norm rather than something negative.

What’s another expression for someone who is both ‘crazy’ and ‘wild’?

For someone who’s both ‘crazy’ and ‘wild’, we could use expressions like ‘party animal’ or ‘free spirit’, which convey a sense of fun and fearlessness.

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