Synonyms of rat

rat 1 of 2

noun

ˈrat 

1

as in informant

a person who provides information about another's wrongdoing

the drug mule refused to turn rat without a guarantee of immunity

Synonyms & Similar Words

• informant
• informer
• canary
• reporter
• snitch
• stoolie
• betrayer
• squealer
• tattletale
• stool pigeon
• tattler
• fink
• snitcher
• nark
• rat fink
• spy
• telltale
• deep throat
• talebearer
• snoop
• gossiper
• tipster
• notifier
• leaker
• blabbermouth
• discloser
• snooper
• whistleblower
• gossip
• exposer
• blabber

2

as in lover

someone who regularly spends time in a particular place

on Friday night the mall rats were out in full force

Synonyms & Similar Words

• lover
• fan
• familiar
• denizen
• patron
• guest
• client
• customer
• regular
• habitué
• haunter
• frequenter
• enthusiast
• bug
• maniac
• addict
• freak
• devotee
• fanatic
• buff
• fiend
• nut
• aficionado
• fancier

3

as in bastard

a person whose behavior is offensive to others

no one can understand what she finds appealing in a rat like him

Synonyms & Similar Words

• bastard
• dog
• jerk
• clown
• skunk
• snake
• toad
• vermin
• joker
• creep
• idiot
• louse
• beast
• swine
• moron
• reptile
• bugger
• heel
• varmint
• brat
• scumbag
• brute
• scum
• hound
• cad
• fink
• fool
• buzzard
• rotter
• stinker
• cur
• cretin
• slime
• schmuck
• villain
• blighter
• boor
• pill
• sod
• lout
• bounder
• nuisance
• so-and-so
• dirtbag
• slob
• scuzzball
• son of a gun
• chuff
• crud
• slimeball
• sleaze
• bleeder
• barbarian
• crumb
• sleazebag
• rat fink
• stinkard
• savage
• sleazeball
• churl
• nerd
• wretch
• scoundrel
• lowlife
• rogue
• caveman
• scab
• loudmouth
• rascal
• Neanderthal
• booby
• vulgarian
• imbecile
• miscreant
• scamp
• dolt
• dope
• pest
• turkey
• jackass
• goon
• blockhead
• roughneck
• ninny
• snot
• nincompoop
• nut
• airhead
• snob
• nitwit
• schmo
• nit
• doofus
• insolent
• dink
• dork
• snip
• half-wit
• dweeb
• birdbrain
• snoot

Antonyms & Near Antonyms

• hero
• gentleman
• lady
• heroine
• idol
• role model
• saint
• angel

rat

2 of 2

verb

as in to leak

Related Words

• leak
• talk
• expose
• tip (off)
• warn
• tattle
• give away
• squeal
• inform
• betray
• tell
• spill
• reveal
• wise (up)
• say
• communicate
• whisper
• proclaim
• publish
• divulge
• breathe
• broadcast
• disclose
• impart
• blab
• declare
• announce
• recognize
• accept
• break
• yield
• unveil
• confirm
• own (up to)
• unload
• profess
• affirm
• confess
• avow
• admit
• grant
• acknowledge
• concede
• disburden
• allow
• unburden
• agree
• fess (up)

Dissimilar Words

• deny
• negative
• dispute
• hide
• reject
• contradict
• disclaim
• veil
• disallow
• disavow
• conceal
• negate
• refute
• disown
• repudiate
• obscure
• cover (up)
• rebut
• gainsay
• kid (oneself)

Example Sentences

Recent Examples of rat

Noun

The trick is that the body’s salty tissues conduct electricity, so a tiny voltage pulse from the hub could spread across the rat’s body to reach the implant. — Peter Hall, Scientific American, 29 Sep. 2026

For this argument Thomasine was jailed—stuffed into a damp, stinking, deadly stone cell crawling with rats and lice—to force her to change her beliefs. — Literary Hub, 28 Sep. 2026

Other cities, like Boston and New York, are also leaning into human rat education. — Ava Berger, NPR, 28 Sep. 2026

Researchers demonstrated the system in rats by creating a network linking sensors and neural interfaces across the body. — Neetika Walter, Interesting Engineering, 25 Sep. 2026

Phrases Containing rat

• rat (on)
• rat fink