Another word for changeable
Said of persons
inconstant, unstable, fickle, irresolute, flighty, irresponsible, unreliable, purposeless, wayward, unsettled, motiveless, uncertain, spasmodic, fanciful, impulsive, wavering, uneasy, unsteady, changeful, undecided, uneven, vagrant, faddish, fidgety, roving, many-sided, vacillating, mutable, versatile, moody, temperamental, irregular, capricious, indecisive, restless, erratic, uneasy, agitated, whimsical, light, lightheaded, volatile, shifty, skittish, mercurial, fitful, unpredictable.
Said of conditions
variable, varying, variant, uncertain, mutable, unsteady, unsettled, doubtful, plastic, kaleidoscopic, convertible, transformable, protean, permutable, commutative, reversible, inconstant, transitional, unstable, revocable, wavering, fluid, fluctuating, movable, mobile, unfixed, alterable, alternating, modifiable, everchanging, transmutable, labile; see also irregular 1.
Another word for changeableadjective
Capable of or liable to change:alterable, fluid, inconstant, mutable, uncertain, unsettled, unstable, unsteady, variable, variant. (Archaic) various. See change
Following no predictable pattern:capricious, erratic, fantastic, fantastical, fickle, freakish, inconsistent, inconstant, mercurial, temperamental, ticklish, uncertain, unpredictable, unstable, unsteady, variable, volatile, whimsical. See change, continue
Changing easily, as in expression:fluid, mobile, plastic. See change