harebrain
Impulsive foolish person
A harebrain is a scatterbrained or reckless person—someone whose mind darts about like a startled hare.
The word appears far less often than its adjective form harebrained, which describes foolish or ill-conceived plans: a harebrained scheme to get rich quick.
Lacking mental focus
- dimwitFoolish, slow person
- airheadFoolish, flighty person
- nitwitFoolish, silly person
- simpletonUnintelligent person
blockhead · bonehead · dingbat · doofus · dope · dullard · dunce · lamebrain
Without coherent meaning
- absurdWildly illogical
- preposterousCompletely contrary to reason
- unreasonableNot guided by reason
- ludicrousAbsurdly unreasonable or inappropriate
crackpot · cockamamie · half-baked · hare-brained · wacky · zany · ridiculous · crazy
Acting without deliberation
- rashHeedless or skin irritation
- foolhardyRecklessly bold
- heedlessCareless of consequences
- impetuousActing on sudden urge
wild · incautious · unthinking · precipitate · brash · daredevil · madcap · devil-may-care
scatterbrained
Lacking mental focus
simpleton · blockhead · bonehead · dingbat · doofus · dope · dullard · dunce · lamebrain · lunkhead
nonsensical
Without coherent meaning
- absurdWildly illogical
- preposterousCompletely contrary to reason
- unreasonableNot guided by reason
ludicrous · crackpot · cockamamie · half-baked · hare-brained · wacky · zany · ridiculous · crazy · outlandish
impulsive
Acting without deliberation
impetuous · wild · incautious · unthinking · precipitate · brash · daredevil · madcap · devil-may-care · hotheaded
harebraingenius
Person of rare brilliance
sage · intellectual · brilliant · thinker · scholar
harebrainlevel-headed
Calm and sensible
sensible · prudent · thoughtful · judicious · careful