inconstant, fickle, capricious, mercurial, unstable mean lacking firmness or steadiness (as in purpose or devotion). inconstant implies an incapacity for steadiness and an inherent tendency …

FICKLE definition: likely to change, especially due to caprice, irresolution, or instability; casually changeable. See examples of fickle used in a sentence.

She's so fickle - she's never been interested in the same man for more than a week! The world of popular music is notoriously fickle.

If you describe someone as fickle, you disapprove of them because they keep changing their mind about what they like or want.

Definition of fickle adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Fickle implies an underlying perversity as a cause for the lack of stability: the fickle seasons, disappointing as often as they delight; once lionized, now rejected by a fickle public.

Nov 26, 2025 · Adjective fickle (comparative fickler or more fickle, superlative ficklest or most fickle) Quick to change one’s opinion or allegiance; insincere; not loyal or reliable. Synonyms: …

Jan 12, 2016 · People who are fickle change their minds so much you can't rely on them. If your best friend suddenly decides that she doesn't like you one week, and then the next week she …

1. not constant or loyal in affections. 2. likely to change, esp. due to caprice, irresolution, or instability; casually changeable: fickle weather.

fickle (adjective) fickle / ˈ fikəl/ adjective Britannica Dictionary definition of FICKLE [more fickle; most fickle] 1 : changing often fickle weather