Synonyms of fickle

fickle

adjective

ˈfi-kəl 

1

as in volatile

likely to change frequently, suddenly, or unexpectedly

a fickle friendship that was on and off over the years

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

2

as in traitorous

not true in one's allegiance to someone or something

when the family's fortune disappeared, so did their fickle friends

Synonyms & Similar Words

• traitorous
• unreliable
• treacherous
• false
• inconstant
• faithless
• disloyal
• unfaithful
• perfidious
• untrue
• untrustworthy
• uncertain
• undependable
• hesitant
• irresponsible
• recreant
• faltering
• irresolute
• wavering
• dubious
• vacillating
• uninterested
• dispassionate
• apathetic
• trustless

Antonyms & Near Antonyms

• loyal
• constant
• faithful
• true
• steadfast
• steady
• devout
• fast
• reliable
• staunch
• responsible
• dependable
• devoted
• dedicated
• solid
• trustworthy
• dutiful
• trusty
• down-the-line
• stanch
• unfaltering
• tried
• resolute
• determined
• unhesitating
• passionate
• intent
• trustable
• inveterate
• enthusiastic
• ardent
• confirmed
• tried-and-true
• fervent
• unwavering
• impassioned
• avid
• fervid
• sworn
• dyed-in-the-wool

Synonym Chooser

How does the adjective fickle differ from other similar words?

Some common synonyms of fickle are capricious, inconstant, mercurial, and unstable. While all these words mean "lacking firmness or steadiness (as in purpose or devotion)," fickle suggests unreliability because of perverse changeability and incapacity for steadfastness.

performers discover how fickle fans can be

In what contexts can capricious take the place of fickle?

In some situations, the words capricious and fickle are roughly equivalent. However, capricious suggests motivation by sudden whim or fancy and stresses unpredictability.

an utterly capricious critic

When could inconstant be used to replace fickle?

The meanings of inconstant and fickle largely overlap; however, inconstant implies an incapacity for steadiness and an inherent tendency to change.

an inconstant friend

When is mercurial a more appropriate choice than fickle?

While the synonyms mercurial and fickle are close in meaning, mercurial implies a rapid changeability in mood.

made anxious by her boss's mercurial temperament

When might unstable be a better fit than fickle?

The synonyms unstable and fickle are sometimes interchangeable, but unstable implies an incapacity for remaining in a fixed position or steady course and applies especially to a lack of emotional balance.

too unstable to hold a job

Example Sentences

Recent Examples of fickle

His tenure there was ultimately torpedoed by the fickle durability of 2019 No. 1 pick Zion Williamson. —Bennett Durando, Denver Post, 21 May 2025

Extreme heat can be extremely stressful on the already fickle fruit trees. —Ashley Miznazi, Miami Herald, 26 June 2025

States that could see auroras tonight: Alaska Montana North Dakota Minnesota South Dakota Michigan (Upper Peninsula) Wisconsin Maine Idaho Washington Remember, auroras can be fickle. —Daisy Dobrijevic, Space.com, 26 June 2025

The boxer was expected to star alongside Nick Nolte, Jim Caviezel, and Sean Penn, but had all of his scenes cut by the famously fickle director. —EW.com, 19 June 2025