hairbrained
Lacking good sense
A common misspelling of harebrained, meaning reckless or foolish.
The correct spelling refers to the hare—an animal associated with erratic, zigzagging behavior.
The "hair" spelling, though widespread, is an error: His hairbrained scheme to get rich quick failed spectacularly.
Wildly illogical
- idioticExtremely lacking intelligence
- asinineExtremely foolish or stupid
- ludicrousAbsurdly unreasonable or inappropriate
- preposterousCompletely contrary to reason
nonsensical · inane · daft · dimwitted · doltish · ridiculous · laughable · moronic
Arising without external cause
- unthinkingLacking conscious thought
- snapSudden sharp sound
- spur-of-the-momentDone without advance planning
- whimsicalPlayfully fanciful or erratic
capricious · impetuous · unpremeditated · offhand · hasty · knee-jerk · half-cocked · ill-considered
Based on poor judgment
- shortsightedUnable to see ahead
- unwiseLacking sound judgment
- injudiciousShowing poor judgment
- imprudentLacking careful forethought
half-baked · unrealistic · naive · unsound · wrongheaded · crackpot · cockamamy · quixotic
Heedless or skin irritation
- impetuousActing on sudden urge
- hastyExcessively quick, ill-considered
- heedlessCareless of consequences
- carelessInattentive, prone to mistakes
irresponsible · foolhardy · madcap · daredevil · headlong · precipitate · incautious · audacious
absurd
Wildly illogical
- idioticExtremely lacking intelligence
- asinineExtremely foolish or stupid
- ludicrousAbsurdly unreasonable or inappropriate
preposterous · nonsensical · inane · daft · dimwitted · doltish · ridiculous · laughable · moronic · senseless
spontaneous
Arising without external cause
- unthinkingLacking conscious thought
- snapSudden sharp sound
- spur-of-the-momentDone without advance planning
whimsical · capricious · impetuous · unpremeditated · offhand · hasty · knee-jerk · half-cocked · ill-considered · reactive
misguided
Based on poor judgment
- shortsightedUnable to see ahead
- unwiseLacking sound judgment
- injudiciousShowing poor judgment
imprudent · half-baked · unrealistic · naive · unsound · wrongheaded · crackpot · cockamamy · quixotic · ill-advised
rash
Heedless or skin irritation
- impetuousActing on sudden urge
- hastyExcessively quick, ill-considered
- heedlessCareless of consequences
careless · irresponsible · foolhardy · madcap · daredevil · headlong · precipitate · incautious · audacious · kamikaze
wacky
Amusingly eccentric
- kookyOddball in manner
- crackbrainedFoolish to absurdity
- screwballDeceptive breaking pitch
hare-brained · loopy · nutty · batty · screwy · madcap · crazy · offbeat · goofy · wild-eyed
hairbrainedlevelheaded
Calm and judicious
composed · steady · grounded · clearheaded · even-keeled
hair, hairy, hairstyle, hairless, hairdo, hairstylist, hairline, harebrained, scatterbrained