Synonyms of sly

sly

adjective

ˈslī 

1

as in cunning

clever at attaining one's ends by indirect and often deceptive means

the movie pairs a sly, dissembling ex-con with an upstanding, straight-arrow cop

Synonyms & Similar Words

• cunning
• cute
• subtle
• slick
• deceptive
• wily
• shrewd
• fraudulent
• dishonest
• devious
• artful
• treacherous
• crooked
• scheming
• crafty
• beguiling
• cagey
• foxy
• guileful
• tricky
• designing
• deceitful
• cagy
• dodgy
• shady
• slippery
• sharp
• calculating
• astute
• sneaky
• covert
• glib
• unscrupulous
• oblique
• clandestine
• underhanded
• shifty
• undercover
• Machiavellian
• plotting
• facile
• knavish
• underhand
• hypocritical
• circular
• surreptitious
• secret
• serpentine
• insincere
• backhanded
• furtive
• roundabout
• concealed
• circuitous
• stealthy
• insinuating
• two-faced
• smooth-tongued
• mealy
• double-dealing
• mealymouthed
• left-handed
• hugger-mugger

Antonyms & Near Antonyms

• ingenuous
• guileless
• artless
• innocent
• obvious
• plain
• public
• simple
• real
• frank
• direct
• open
• candid
• forthright
• sincere
• honest
• straightforward
• outspoken
• unconcealed
• unaffected
• unpretentious
• natural
• patent
• childlike
• unsophisticated
• unvarnished
• unpretending
• impressionable
• aboveboard
• simpleminded
• unworldly
• undesigning
• plainspoken
• unstudied
• unforced
• trustful
• trusting

2

as in shady

given to acting in secret and to concealing one's intentions

why, you sly fellow! I had no idea you were planning my birthday party

a sly undercover police officer

Synonyms & Similar Words

• shady
• sneaky
• furtive
• stealthy
• shifty
• cunning
• slippery
• cheating
• dark
• crooked
• sneaking
• deceptive
• wily
• clandestine
• slick
• secretive
• devious
• treacherous
• artful
• crafty
• close
• foxy
• guileful
• dishonest
• covert
• deceitful
• lying
• underhanded
• duplicitous
• tricky
• insidious
• underhand
• reticent
• deceiving
• mendacious
• perfidious
• untrustworthy
• closemouthed
• knavish
• untruthful
• serpentine
• two-faced
• trickish
• dissembling
• double-dealing
• defrauding

Antonyms & Near Antonyms

• forthright
• straightforward
• direct
• frank
• candid
• plain
• open
• plainspoken
• honest
• aboveboard
• truthful
• trustworthy
• foursquare

3

as in mischievous

tending to or exhibiting reckless playfulness

a sly sense of humor

Synonyms & Similar Words

• mischievous
• wicked
• playful
• impish
• waggish
• roguish
• prankish
• knavish
• puckish
• tricksy
• rascally
• devilish
• pixy
• naughty
• pixie
• cunning
• pixieish
• elvish
• happy
• coy
• arch
• scampish
• wily
• whimsical
• teasing
• lighthearted
• lively
• espiègle
• frisky
• antic
• frolicsome
• leprechaunish
• kittenish
• sportful
• coltish
• sprightly
• sportive
• crafty
• spirited
• artful
• energetic
• tricky
• gay
• troublemaking
• trickish
• misbehaving
• pestering
• riling

Antonyms & Near Antonyms

• solemn
• stern
• grim
• grave
• sober
• staid
• sedate

Synonym Chooser

How is the word sly distinct from other similar adjectives?

Some common synonyms of sly are artful, crafty, cunning, foxy, slick, tricky, and wily. While all these words mean "attaining or seeking to attain one's ends by guileful or devious means," sly implies furtiveness, lack of candor, and skill in concealing one's aims and methods.

a sly corporate raider

Where would artful be a reasonable alternative to sly?

The words artful and sly are synonyms, but do differ in nuance. Specifically, artful implies indirectness in dealing and often connotes sophistication or cleverness.

elicited the information by artful questioning

When could crafty be used to replace sly?

While in some cases nearly identical to sly, crafty implies cleverness and subtlety of method.

a crafty lefthander

In what contexts can cunning take the place of sly?

While the synonyms cunning and sly are close in meaning, cunning suggests the inventive use of sometimes limited intelligence in overreaching or circumventing.

the cunning fox avoided the trap

When is it sensible to use foxy instead of sly?

The synonyms foxy and sly are sometimes interchangeable, but foxy implies a shrewd and wary craftiness usually involving devious dealing.

a foxy publicity man planting stories

When is slick a more appropriate choice than sly?

In some situations, the words slick and sly are roughly equivalent. However, slick emphasizes smoothness and guile.

slick operators selling time-sharing

When might tricky be a better fit than sly?

Although the words tricky and sly have much in common, tricky is more likely to suggest shiftiness and unreliability than skill in deception and maneuvering.

a tricky political operative

When would wily be a good substitute for sly?

The meanings of wily and sly largely overlap; however, wily implies skill and deception in maneuvering.

the wily fugitive escaped the posse

Example Sentences

Recent Examples of sly

The best part of the sketch isn’t its sly picture of Gen X’s slow fade into conformity, but Jason Sudeikis as the groom’s father who is unironically into the performance. —Harrison Richlin, IndieWire, 11 Feb. 2025

Charlie Shackleton’s sly film Zodiac Killer Project lives inside this conceptual limbo — nebulously sinister and dryly hilarious all at once. —Bilge Ebiri, Vulture, 27 Jan. 2025

Audiences savored White’s scathing dialogue, actor Jennifer Coolidge’s tragicomic performance as the emotionally indigent heiress Tanya McQuoid, and the show’s sly insights into how money comes to shape our every relationship. —Charlie Campbell, TIME, 24 Jan. 2025

Jimmie Johnson, the seven-time NASCAR Cup Series champion, has clapped back at Shaquille O'Neal after the NBA icon sent a sly jab about Johnson's upcoming Daytona 500 entry. —Gordon G. Chang, Newsweek, 24 Jan. 2025