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crazy as a loon

ADJECTIVE
bananas
Synonyms
STRONG
crackers crazy cuckoo lunatic maniac nuts psycho sick
WEAK
bonkers brainsick daft demented deranged distraught disturbed dotty kooky loco mad mad as a hatter maniacal moonstruck not all there nutty as a fruitcake off one's rocker out of one's mind out to lunch sick in the head stark raving mad touched unbalanced unhinged unsound wacky
Antonyms
STRONG
healthy sane sensible
ADJECTIVE
crackers
Synonyms
STRONG
crazy cuckoo lunatic nuts psycho psychotic sick
WEAK
batty bonkers brainsick cracked crazed daft demented deranged distraught disturbed dotty kooky loco mad moonstruck not all there nutty off one's rocker out of one's mind out to lunch sick in the head stark raving mad touched unbalanced unhinged unsound wacky
Antonyms
STRONG
healthy sane sensible
ADJECTIVE
fruity
Synonyms
STRONGEST
nutty
WEAK
bananas batty bonkers buggy crackers crazed crazy cuckoo daft demented disordered dotty eccentric kooky loco loony lunatic mad mad as a hatter moonstruck not all there nuts nutty as a fruitcake of unsound mind off off one's rocker out of one's mind stark raving mad touched unbalanced unsound wacky
ADJECTIVE
gaga
Synonyms
STRONGEST
batty distraught
WEAK
around the bend bizarre brainsick cracked crazed crazy cuckoo daft demented deranged disordered dotty fatuous frenzied idiotic impractical irrational irresponsible loony lunatic mad
ADJECTIVE
loco
Synonyms
WEAK
around the bend batty bizarre brainsick cracked crazed crazy cuckoo daft demented deranged disordered distraught dotty fatuous frenzied idiotic impractical irrational irresponsible loony lunatic mad mad as a hatter maniac maniacal moonstruck not all there nuts nutty nutty as a fruitcake of unsound mind off off one's rocker out of one's mind paranoid preposterous psychopathic psychotic rabid raging raving screwy senseless sick in the head stark raving mad touched unbalanced unhinged unsettled unsound wild wrong
ADJECTIVE
moonstruck
Synonyms
WEAK
around the bend batty bizarre brainsick cracked crazed crazy cuckoo daft demented deranged disordered distraught dotty fatuous frenzied idiotic impractical irrational irresponsible loony lunatic mad mad as a hatter maniac maniacal not all there nuts nutty nutty as a fruitcake of unsound mind off off one's rocker out of one's mind paranoid preposterous psychopathic psychotic rabid raging raving screwy senseless sick in the head stark raving mad touched unbalanced unhinged unsettled unsound wild wrong

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

You might be crazy as a loon or you're better, but there's an evaluation.

From Salon • Aug. 7, 2021

“Meanwhile, I was crazy as a loon myself.”

From The New Yorker • Aug. 26, 2019

And Charlie Sheen's performance as Ricky Vaughn should have given us a clue he was crazy as a loon.

From Seattle Times • Sep. 28, 2011

The argument here: Richard Williams, crazy as a loon and sly as a fox, is, in the wasteland of girls' tennis dads, an oasis of stability.

From Time Magazine Archive

Raymie’s mother said that Mrs. Borkowski was as crazy as a loon.

From "Raymie Nightingale" by Kate DiCamillo