irritable

atrabilious bad-tempered bilious brainish cantankerous carnaptious choleric crabbit crabby cranky crotchety dyspeptic edgy fantoddish fractious fiery fretful grumpy grotchy grouchy hissy hot-livered hot-tempered hotheaded huffy humpy ill-natured irascible ill-tempered liverish out of sorts ornery (chiefly US)} peevish pettish petulant prickly quick-tempered querulous raspy ratty short-tempered snappish snappy snippety snippish snippy snitchy splenetic stressy surly temperamental testy tetchy tetty thin-skinned thorny touchy umbrageous twitchy volatile waspish

calm imperturbable serene