Excitable

a.

1.

Capable of being excited, or roused into action; susceptible of excitement; easily stirred up, or stimulated.

Adj.	1.	excitable - easily excited Antonyms: unexcitable - not easily excited; "an unexcitable temperament"
	2.	excitable - capable of responding to stimuli Synonyms: irritable

agitable, all nerves, apprehensive, bearish, bitchy, cankered, cantankerous, churlish, combustible, crabbed, cranky, cross, cross-grained, crusty, cussed, disagreeable, edgy, emotional, emotionally unstable, eruptive, explosive, fearful, feisty, feverish, fidgety, fractious, frightened, high-mettled, high-spirited, high-strung, highly emotional, hot-blooded, huffish, huffy, hysterical, inflammable, irascible, irritable, jumpy, mean, mercurial, mettlesome, nerves on edge, nervous, nervy, on edge, ornery, overstrung, panicky, perturbable, perverse, prickly, quick-tempered, restive, restless, sensitive, skittery, skittish, snappish, spiteful, spleeny, splenetic, startlish, temperamental, testy, touchy, ugly, uneasy, unstable, volatile, volcanic, waspish