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adj.
determined by chance or impulse or whim rather than by necessity or reason; "a capricious refusal"; "authoritarian rulers are frequently capricious"; "the victim of whimsical persecutions"
adj.
capable of or tending to change in form or quality or nature; "a mutable substance"; "the mutable ways of fortune"; "mutable weather patterns"; "a mutable foreign policy"
adj.
lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy"
adj.
likely to change frequently often without apparent or cogent reason; variable; "inconstant affections"; "an inconstant lover"; "swear not by...the inconstant moon"- Shakespeare
adj.
liable to sudden unpredictable change; "erratic behavior"; "fickle weather"; "mercurial twists of temperament"; "a quicksilver character, cool and willful at one moment, utterly fragile the next"
adj.
not sensible about practical matters; idealistic and unrealistic; "as quixotic as a restoration of medieval knighthood"; "a romantic disregard for money"; "a wild-eyed dream of a world state"
adj.
having or using the ability to act or decide according to your own discretion or judgment; "The commission has discretionary power to award extra funds"