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

The power of variable ratio reinforcement attracts and retains gamblers in a way blackjack, roulette, or craps do not. — Chip Bell, Forbes.com, 15 Aug. 2026

Winds will be light and variable becoming east-southeast at 5 to 9 mph in the afternoon. — Jessica Alvarado Gamez, Denver Post, 14 Aug. 2026

Noun

That architecture places the full energy burden of lift and cruise on the battery system, making cell-level performance a central engineering variable. — Aditya Jadhav, Interesting Engineering, 4 Aug. 2026

With both of these cards offering very similar 0% APR periods, your preference may come down to the balance transfer fee charged or the ongoing variable APR. — Ryley Amond,brett Holzhauer, CNBC, 4 Aug. 2026