What is the Latin word for fickle?

The usual Latin words for “fickle” are incōnstāns, varius, mōbilis; also levis, mūtābilis, īnfidēlis. The right choice depends on the sense; see the distinctions below.

English → Latin

“fickle” in Latin

incōnstānschangeable; inconstant; inconsistent; fickle; capricious variusdiverse, different, various, varied; manifold, changing, variable, complex; versatile mōbilismovable, loose; pliant, flexible; fickle, inconstant levislight, not heavy; easy to digest; quick, swift, fleet, nimble, rapid mūtābilismutable, changeable, inconstant īnfidēlisunfaithful; treacherous, disloyal; unbelieving, infidel īnfirmusweak, feeble; unhealthy, infirm, indisposed, sick; inconclusive incertusuncertain, doubtful, not sure, unsure; not knowing, doubting (said of persons); not known, obscure (said of things)īnstabilisunsteady, unstable, shaky; inconstant, changeable, fickle

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

fickle

inconstans: varius: mobilis: levis: mutabilis: infidelis: infirmus [Vid: CHANGEABLE]: incertus: instabilis.

Quick answer

What is the Latin word for fickle?: The usual Latin words for “fickle” are incōnstāns, varius, mōbilis; also levis, mūtābilis, īnfidēlis. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.