WordNet (r) 3.0 (2006):

bad temper
    n 1: a persisting angry mood [syn: bad temper, ill temper]

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "bad temper":
   Irish, anger, asperity, bad blood, bad humor, bad will, bile,
   biliousness, blighting glance, causticity, choler, corrosiveness,
   dander, discontent, evil disposition, evil eye, gall, ill humor,
   ill nature, ill temper, ill will, ill-disposedness, malevolence,
   malocchio, sourness, spleen, temper, whammy