A disagreeable, irritable, or malevolent disposition.

Roget 907: malevolence; bad intent, bad intention; unkindness, diskindness^†; ill nature, ill will, ill blood; bad blood; enmity etc. 889; hate etc. 898; malignity; malice, malice prepense^†; maliciousness etc. adj.; spite, despite; resentment etc. 900.    uncharitableness etc. adj.; incompassionateness etc. 914.1^†; gall, venom, rancor, rankling, virulence, mordacity^†, acerbity churlishness etc. (discourtesy) 895.    hardness of heart, heart of stone, obduracy; cruelty; cruelness etc. adj.; brutality, savagery; ferity^†, ferocity; barbarity, inhumanity, immanity^†, truculence, ruffianism; evil eye, cloven foot; torture, vivisection.    ill turn, bad turn; affront etc. (disrespect) 929; outrage, atrocity; ill usage; intolerance, persecution; tender mercies [Iron.]; unkindest cut of all" [Julius Caesar]. ... show more