Synonyms of casual

casual

adjective

ˈkazh-wəl 

1

as in informal

not designed to be worn only on special occasions

a restaurant where people in casual clothes are always welcome

Synonyms & Similar Words

• informal
• everyday
• relaxed
• workaday
• sporty
• sloppy
• slovenly
• dégagé
• shabby
• unkempt
• dressed down

Antonyms & Near Antonyms

• formal
• dressy
• best
• elegant
• Sunday
• fashionable
• chic
• stylish
• noncasual
• smart
• neat
• tidy
• trim
• dressed up
• semiformal

2

as in accidental

happening by chance

a casual meeting with the next-door neighbors on a beach in Hawaii

Synonyms & Similar Words

• accidental
• unexpected
• chance
• incidental
• inadvertent
• unintentional
• unplanned
• unpremeditated
• unintended
• unwitting
• fortuitous
• odd
• random
• flukey
• arbitrary
• haphazard
• coincidental
• aimless
• fluky
• desultory
• uncertain
• freak
• unforeseen
• unforeseeable
• involuntary
• unconscious
• forced
• unprompted
• coerced

Antonyms & Near Antonyms

• deliberate
• intentional
• intended
• premeditated
• planned
• calculated
• certain
• predictable
• inevitable
• sure
• set
• foreseeable
• fixed
• premeditative
• expected
• destined
• conscious
• prescribed
• prepense
• voluntary
• predetermined
• foreseen
• wilful
• volunteer
• willful
• knowing
• unforced
• preordained
• predestined
• foreordained
• freewill

3

as in nonchalant

having or showing a lack of interest or concern

only a casual examination of the bicycle before buying it

Synonyms & Similar Words

• nonchalant
• careless
• uninterested
• disinterested
• perfunctory
• detached
• indifferent
• insouciant
• unconcerned
• apathetic
• complacent
• stoic
• incurious
• calm
• uncurious
• cold
• aloof
• pococurante
• numb
• insensible
• halfhearted
• dispassionate
• unemotional
• remote
• tepid
• callous
• lukewarm
• cool
• insensitive
• mindless
• stoical
• heedless
• phlegmatic
• unfeeling
• stolid
• listless
• lethargic
• impassive
• impervious
• hard-hearted
• unimpressed

Antonyms & Near Antonyms

• interested
• aware
• concerned
• conscientious
• attentive
• mindful
• sensitive
• warm
• passionate
• ardent
• zealous
• fervent
• heedful
• keen
• caring
• warmhearted

4

as in sporadic

lacking in steadiness or regularity of occurrence

a casual attendance at their son's hockey games

Synonyms & Similar Words

• sporadic
• occasional
• sudden
• intermittent
• violent
• irregular
• erratic
• unpredictable
• episodic
• unsteady
• discontinuous
• episodical
• spastic
• fitful
• spasmodic
• catchy
• volatile
• spotty
• aperiodic
• choppy
• random
• haphazard
• aimless
• changing
• scattered
• interrupted
• changeful
• varying
• odd
• desultory
• arbitrary
• fragmentary
• disconnected
• uncertain
• convulsive
• broken
• stray
• unstable
• slapdash
• capricious
• unsettled
• variable
• mercurial
• hit-or-miss
• fluid
• inconstant
• hit-and-miss
• mutable
• changeable
• fluctuating
• fickle
• temperamental
• wavering
• flickery

Antonyms & Near Antonyms

• regular
• continuous
• constant
• habitual
• periodic
• steady
• uniform
• stable
• stationary
• repeated
• even
• systematic
• unchanging
• methodical
• orderly
• equable
• changeless
• unvarying
• unrelenting
• unwavering
• methodic
• unremitting

Synonym Chooser

How does the adjective casual differ from other similar words?

Some common synonyms of casual are accidental, contingent, and fortuitous. While all these words mean "not amenable to planning or prediction," casual stresses lack of real or apparent premeditation or intent.

a casual encounter with a stranger

When might accidental be a better fit than casual?

The synonyms accidental and casual are sometimes interchangeable, but accidental stresses chance.

any resemblance to actual persons is entirely accidental

In what contexts can contingent take the place of casual?

While in some cases nearly identical to casual, contingent suggests possibility of happening but stresses uncertainty and dependence on other future events for existence or occurrence.

the contingent effects of the proposed law

When is it sensible to use fortuitous instead of casual?

Although the words fortuitous and casual have much in common, fortuitous so strongly suggests chance that it often connotes entire absence of cause.

a series of fortuitous events

Example Sentences

Recent Examples of casual

Even casual users should take a moment to review their settings and chat history to make sure personal details aren’t being shared without their knowledge. —Kurt Knutsson, FOXNews.com, 1 July 2025

Quiet luxury persists, but in a more casual, relaxed iteration. —Rhonda Richford, Footwear News, 30 June 2025

For garden parties, vacation, and or just hanging out, sandals or sneakers are a more casual option. —Jana Ackermann, Glamour, 30 June 2025

Leading the pack is former special-forces operative Zora Bennett (a pathologically chipper Scarlett Johansson, often rocking some casual Linda Hamilton cosplay), who’s allegedly still reeling from the death of a beloved colleague on her most recent mission. —David Ehrlich, IndieWire, 30 June 2025