Synonyms of mutable

2 Syllables
fickle, wiggly, checky, fickler
3 Syllables
mercurial, erratic, unstable, variable, inconstant, capricious, tottery, unsettled, motile, tottering, fluctuating, mobile, wavering, unsteadfast, changeable, checkered, vagarious
4 Syllables
reversible, modifiable, unreliable, alterable, revocable, permutable, vacillating, unequable, transportable, humorsome
5 Syllables
commutative, unstationary