short-fused

demonstrative fidgety fiery high-strung hysterical impulsive restless skittish temperamental

agitable alarmable edgy emotional enthusiastic fierce galvanic hasty hot-headed hot-tempered impatient impetuous inflammable intolerant irascible mercurial moody nervous neurotic overzealous passionate peevish quick quick-tempered rash reckless sensitive susceptible testy touchy uncontrolled uneasy vehement violent volatile volcanic

calm cold cool laid-back

easy easygoing insensitive passive unexcitable uninspired

hot-tempered

easily provoked excitable explosive impetuous passionate rash touchy volatile

enraged incensed

angered

angry mad

cantankerous crabby cranky crotchety fiery grouchy hot-blooded hot-tempered ill-tempered impatient irascible irritable peckish quick-tempered snappish snappy temperamental testy touchy volatile

calm easygoing placid