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
• unfaltering
• tried
• resolute
• determined
• unhesitating
• passionate
• intent
• trustable
• inveterate
• enthusiastic
• confirmed
• ardent
• tried-and-true
• unwavering
• fervent
• 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

The soccer gods, inherently fickle and usually corrupt, actually rewarded that blind devotion. — Dieter Kurtenbach, Mercury News, 26 June 2026

On a fickle morning in Miami—the kind where patches of sunshine give way to intervals of torrential rain—Learner Tien has taken shelter deep inside Hard Rock Stadium, the obliging home of the Dolphins, a Formula 1 Grand Prix, and, at the moment, the Miami Open. — Jake Nevins, Vogue, 25 June 2026

George knows how fickle soccer can be. — Tim Rohan, NBC news, 25 June 2026

Something ironic, perhaps, about the politically fickle Roseanne Barr’s claim to Dickens (The Tale of Two Cities; current bid $1). — Brittany Allen, Literary Hub, 25 June 2026