Synonyms of alarmable

2 Syllables
fickle, skittish, fearful, dizzy, edgy, flighty, giddy, jumpy, peppy, playful, zippy, high-strung
3 Syllables
frivolous, volcanic, capricious, lightheaded, fidgety, whimsical, spirited, excited, restive, lively, changeable
4 Syllables
unreliable, combustible, volative, agitable, sensitive, excitable, harebrained, scatterbrained
5 Syllables
irresponsible, undependable