anxious eager irritable keen restless testy thirsty abrupt agog antsy appetent ardent athirst avid breathless brusque chafing choleric curt demanding dying to edgy feverish fretful hasty having short fuse headlong hot under collar hot-tempered impetuous indignant intolerant irascible itchy on pins and needles quick-tempered racing one's motor ripe snappy straining sudden unforbearing unindulgent vehement violent