(a.) Peevish; irritable; irascible; apt to take fire.

agitable allergic anaphylactic argumentative bad-tempered bearish cantankerous captious chancy choleric close contentious crabbed crabby cranky critical cross crusty dangerous delicate dicey disputatious dyspeptic edgy emotional emotionally unstable empathetic empathic eruptive excitable explosive frightening goosy grouchy hair-raising hairbreadth hairy harmful hazardous high-mettled high-spirited high-strung highly emotional hot-tempered hyperesthetic hyperpathic hypersensitive inflammable irascible irritable itchy mettlesome miffy nerve-racking nervous on slippery ground on thin ice overrefined oversensible oversensitive overtender parlous passible peevish perturbable pettish petulant precarious prickly querulous quick-tempered ratty refined responsive risky sensitive short-tempered skittish slippery slippy snappish snarling splenetic startlish supersensitive sympathetic tactful temperamental tender tense terrifying testy tetchy thin-skinned ticklish touch-and-go tricky uncertain unpredictable unsafe unsure volatile volcanic waspish