<a fickle friendship that was on and off over the years>
The Weak will suck up to the Strong, for fear of losing their jobs and their money and all the fickle power they wielded only twenty-four hours ago. —Hunter S. Thompson, Rolling Stone, 11 Nov. 2004
The corporate fan who has replaced the core fan is a fickle beast, choosy about which games he'll use his precious free time to attend. —E. M. Swift, Sports Illustrated, 15 May 2000
A failed play was a denial of what Odets was owed, for he was chasing the public no differently than did his bourgeois and nonrevolutionary contemporaries, a public as fickle as it always was and is. —Arthur Miller, Harper's, March 1999
War is like hard-drug abuse or a fickle lover, an apparently contradictory bolt of compulsion, agony and ecstasy that draws you back in the face of better judgment time and time again. —Anthony Loyd, My War Gone By, 1999
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 to change <an inconstant friend>. fickle suggests unreliability because of perverse changeability and incapacity for steadfastness <performers discover how fickle fans can be>. capricious suggests motivation by sudden whim or fancy and stresses unpredictability <an utterly capricious critic>. mercurial implies a rapid changeability in mood <made anxious by her boss's mercurial temperament>. unstable implies an incapacity for remaining in a fixed position or steady course and applies especially to a lack of emotional balance <too unstable to hold a job>.