Fickle

Adjective

 * 1) Quick to change one’s opinion or allegiance; insincere; not loyal or reliable.

Adverbs for Fickle
disgustingly; uncertainly; unstably; mercurially; changeably; irresolutely; capriciously; whimsically; unfortunately; remarkably; exceedingly; sensationally; undependably; unhappily; deplorably; habitually; temperamentally; irresolutely; erratically; waywardly; terribly.

Synonyms for Fickle
unreliable, uncertain, vacillating, variable, fanciful, unstable, unsettled, inconstant, mutable, fitful, wavering, changeable, spasmodic, irresolute, unsteady, capricious, whimsical, unfixed, restless, purposeless, hesitant, volatile, wayward, shifting.

Antonyms for Fickle
steady, constant, settled, unchanging, resolute, persevering, firm, determined, unshaken, fixed, steadfast, dependable, unswerving, decided, definite, undeviating, regular, unwavering, faithful, stanch, attached.

Thesaurus
adrift, afloat, agnostic, alternating, ambiguous, ambitendent, ambivalent, amorphous, at loose ends, brittle, capricious, chancy, changeable, changeful, coquettish, corruptible, deciduous, derelict, desultory, deviable, dicey, disaffected, disloyal, dizzy, double-minded, doubting, dubious, dying, eccentric, ephemeral, equivocal, erratic, evanescent, faddish, fading, faithless, false, fanciful, fast and loose, fence-sitting, fence-straddling, fitful, fleeting, flickering, flighty, flirtatious, flitting, fluctuating, fly-by-night, flying, fragile, frail, freakish, frivolous, fugacious, fugitive, giddy, hesitant, hesitating, impermanent, impetuous, impulsive, incalculable, inconsistent, inconstant, indecisive, indemonstrable, infirm, infirm of purpose, insubstantial, irregular, irresolute, irresolved, irresponsible, light, lubricious, mazy, mercurial, momentary, moody, mortal, mugwumpian, mugwumpish, mutable, nondurable, nonpermanent, not true to, of bad faith, of two minds, passing, perishable, polysemous, quicksilver, rambling, recreant, restless, roving, scatterbrained, shapeless, shifting, shifty, short-lived, shuffling, skeptical, skittish, spasmodic, spineless, temperamental, temporal, temporary, ticklish, touch-and-go, toying, transient, transitive, transitory, trothless, unaccountable, uncertain, unconfirmable, uncontrolled, unconvinced, undecided, undependable, undetermined, undisciplined, undivinable, undurable, unenduring, unfaithful, unfixed, unforeseeable, unloyal, unpersuaded, unpredictable, unprovable, unreliable, unresolved, unrestrained, unsettled, unstable, unstable as water, unstaid, unsteadfast, unsteady, unsure, untrue, untrustworthy, unverifiable, vacillating, vagrant, variable, versatile, vicissitudinary, vicissitudinous, volatile, wandering, wanton, wavering, wavery, wavy, wayward, whimsical, wishy-washy

Etymology
From ficol:. From (compare Old Norse feikn:), from  (Latin piget:)

Translations

 * Catalan: inconstant
 * Dutch:, onbetrouwbaar
 * Esperanto:
 * Finnish:, ,
 * French: inconstant
 * German: ,


 * Italian: volubile
 * Portuguese: inconstante
 * Russian:
 * Serbo-Croatian: prevrtljiv, nepostojan, prevrtljiv, mušičav, hirovit
 * Spanish: inconstante, voluble
 * Tagalog: balimbing