Fic″kle (?), a. [OE. fikel untrustworthy, deceitful, AS. ficol, fr. fic, gefic, fraud, deceit; cf. fācen deceit, OS. f�kn, OHG. feichan, Icel. feikn portent. Cf. Fidget.] 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.