fickle Meaning, Definition & Usage

  1. adjective satellite marked by erratic changeableness in affections or attachments
    volatile.
    • fickle friends
    • a flirt's volatile affections
  2. adjective satellite liable to sudden unpredictable change
    mercurial; erratic; quicksilver.
    • erratic behavior
    • fickle weather
    • mercurial twists of temperament
    • a quicksilver character, cool and willful at one moment, utterly fragile the next

WordNet

Fic"kle adjective
Etymology
OE. fikel untrustworthy, deceitful, AS. ficol, fr. fic, gefic, fraud, deceit; cf. facen deceit, OS. fkn, OHG. feichan, Icel. feikn portent. Cf. Fidget.
Definitions
  1. Not fixed or firm; liable to change; unstable; of a changeable mind; not firm in opinion or purpose; inconstant; capricious; as, Fortune's fickle wheel. Shak.
    They know how fickle common lovers are. Dryden.
    Syn. -- Wavering; irresolute; unsettled; vacillating; unstable; inconsonant; unsteady; variable; mutable; changeful; capricious; veering; shifting.

Webster 1913