Synonyms of variable

variable 1 of 2

adjective

ˈver-ē-ə-bəl 

1

as in adjustable

capable of being readily changed

a variable expense that we could reduce if we needed to

Synonyms & Similar Words

• adjustable
• adaptable
• flexible
• changing
• varying
• alterable
• modifiable
• changeable
• elastic
• malleable
• versatile
• fluid
• pliable
• unstable
• labile
• fluctuating
• inconstant
• unsteady

Antonyms & Near Antonyms

• fixed
• invariable
• immutable
• unchangeable
• unalterable
• inelastic
• inflexible
• established
• constant
• set
• uniform
• stable
• unchanging
• steady
• unadaptable
• nonmalleable
• unvarying
• ramrod
• unbudgeable

2

as in volatile

likely to change frequently, suddenly, or unexpectedly

highly variable income from his job as a real estate agent

Synonyms & Similar Words

• volatile
• unpredictable
• changeful
• inconsistent
• unstable
• mutable
• uncertain
• changeable
• fluctuating
• mercurial
• unsettled
• inconstant
• capricious
• fickle
• fluid
• temperamental
• random
• up in the air
• erratic
• unsteady
• arbitrary
• unreliable
• skittish
• scattered
• flickery
• haphazard
• ambivalent
• shaky
• stray
• aimless
• desultory
• irregular
• versatile
• protean
• hit-or-miss
• adaptable
• dicey
• undependable
• untrustworthy
• mobile
• slapdash
• wavering
• vacillating
• hesitating
• shilly-shally
• shilly-shallying

Antonyms & Near Antonyms

• constant
• certain
• stable
• invariable
• predictable
• immutable
• unchanging
• steady
• stationary
• unchangeable
• uniform
• settled
• permanent
• persistent
• unvarying
• even
• changeless
• durable
• lasting
• reliable
• true
• equable
• abiding
• sure
• dependable
• trustworthy
• trusty
• tried
• tried-and-true

variable

2 of 2

noun

as in variable star

Related Words

• variable star
• white dwarf
• neutron star
• pulsar
• quasar
• supernova
• red star
• binary star
• nova
• supergiant
• fixed star
• lodestar
• red giant
• red dwarf
• dwarf
• gasser
• brown dwarf
• giant star
• supercluster
• subdwarf
• sphere
• luminary
• cluster
• sun
• galaxy
• constellation

Example Sentences

Recent Examples of variable

Adjective

Developers must secure approvals from grid operators, who need to verify that regional transmission lines can absorb hundreds of megawatts of variable solar energy before regulators will grant final operating permits. — Aman Tripathi, Interesting Engineering, 21 Aug. 2026

And the higher rates climb, the greater the odds that borrowers with variable-rate loans, or anyone repricing this year, default. — Mayra Rodriguez Valladares, Forbes.com, 21 Aug. 2026

Noun

Second-year quarterback Jaxson Dart’s play is the variable that could swing the win total dramatically in either direction. — The Athletic Nfl Staff, New York Times, 25 Aug. 2026

Cigo captures more than 200 data points per delivery across every stop, route, driver interaction, and capacity variable on the platform. — William Jones, Fort Worth Star-Telegram, 21 Aug. 2026