Synonyms of brain

brain 1 of 2

noun

ˈbrān 

1

as in genius

a very smart person

the brains all sit together at lunch

Synonyms & Similar Words

• genius
• wizard
• intellect
• thinker
• nerd
• whiz
• brainiac
• geek
• intellectual
• wiz
• blue
• savant
• sage
• master
• virtuoso
• polymath
• Renaissance man
• natural
• highbrow
• bluestocking
• polyhistor
• ace
• longhair
• crackerjack

Antonyms & Near Antonyms

• idiot
• moron
• pinhead
• dummy
• imbecile
• dope
• dolt
• blockhead
• dunce
• dumbbell
• knucklehead
• goon
• numskull
• illiterate
• hammerhead
• know-nothing
• dodo
• nitwit
• ignoramus
• fathead
• ass
• lowbrow
• fool
• half-wit
• donkey
• philistine
• snake
• heel
• beast
• creep
• jackass
• clown
• skunk
• louse
• jerk
• cretin
• cur
• stinker
• cad
• boor
• lout
• anti-intellectual
• churl

2

as in intelligence

often brains plural the ability to learn and understand or to deal with problems

you have the brains to figure out that problem on your own

Synonyms & Similar Words

• intelligence
• intellect
• sense
• reason
• brainpower
• talent
• smarts
• mentality
• intellectuality
• gray matter
• insight
• headpiece
• wisdom
• aptitude
• mind
• perception
• brilliance
• skull
• intellectualism
• alertness
• judgment
• acumen
• discernment
• perspicacity
• apprehension
• braininess
• common sense
• astuteness
• horse sense
• wit
• discriminability
• sagacity
• highbrowism
• head
• percipience
• eggheadedness
• mother wit
• sapience

Antonyms & Near Antonyms

• density
• dullness
• idiocy
• dumbness
• slowness
• feeblemindedness
• stupidity
• imbecility
• denseness
• foolishness
• dopiness
• fatuity
• senselessness
• doltishness
• simpleness
• half-wittedness

3

as in mind

the part of a person that feels, thinks, perceives, wills, and especially reasons

I'd love to get inside his brain and experience the world as he experiences it

Synonyms & Similar Words

• mind
• psyche
• head
• intellect
• intelligence
• cerebrum
• skull
• thinker
• wisdom
• brilliance
• perception
• insight
• wit
• consciousness
• gray matter
• reason
• judgment
• noodle
• awareness
• alertness
• mentality
• loaf
• acumen
• belfry
• sagacity
• cognizance
• perspicacity
• sapience
• astuteness
• self-awareness
• self-consciousness

brain

2 of 2

verb

as in to skull

Related Words

• skull
• bean
• conk
• cane
• spear
• club
• sap
• stab
• switch
• cudgel
• slash
• cream
• flail
• knee
• deck
• lash
• whip
• sledge
• floor
• butt
• thrash
• kick
• bump
• stroke
• sledgehammer
• push
• level
• tap
• flog
• fell
• dump
• knock down
• poke
• jab
• bowl (down or over)
• shove
• sucker punch
• jostle
• flick
• stamp
• prod
• rabbit-punch
• box
• pepper
• clock
• chop
• rough
• batter
• bunt
• lick
• zap
• cuff
• pummel
• slug
• clout
• hit
• buffet
• mangle
• smack
• bat
• whack
• belt
• bung
• sock
• punch
• whale
• knock
• pelt
• bop
• maul
• bob
• tag
• paste
• crack
• rap
• clap
• lace
• bonk
• smite
• clip
• slap
• scuff
• hammer
• bludgeon
• bang
• thump
• nail
• pommel
• bust
• swipe
• wallop
• drub
• clobber
• pound
• slam
• strike
• swat
• thwack
• bash
• lambaste
• slog
• beat
• biff

Example Sentences

Recent Examples of brain

Noun

Here’s that letter and a reaction from a reader who’d had a brain injury. — R. Eric Thomas, Mercury News, 9 Aug. 2026

The toddler was taken to a hospital, where he was declared brain dead. — Garrett Behanna, CBS News, 9 Aug. 2026

Verb

For example, Google’s state-of-the-art Gemini 3 model was brained on TPUs. — Kif Leswing, CNBC, 4 Feb. 2026

Koffman said people who carry risk factors for cognitive decline or who are particularly concerned about their brain health should speak with their primary care doctors, who can refer them to brain health specialists, like a neurologist. — Sandra Rose Salathe, Flow Space, 21 Nov. 2025