Synonyms For "Unstable" :
1 syllable:
2 syllables:
cranky, fluid, rocky, seismic, shaky, tender, tippy, tipsy, unsound, wonky
3 syllables:
coseismal, coseismic, explosive, inconstant, reactive, rickety, seismal, tottering, uneasy, unsteady, volatile, volcanic, wobbly