Despiteful

(a.) Full of despite; expressing malice or contemptuous hate; malicious.

Thesaurus Entries

acrid, antagonistic, antipathetic, belligerent, bitchy, bitter, cattish, catty, caustic, clashing, colliding, conflicting, detestable, evil, full of hate, hateful, hostile, malevolent, malicious, malignant, quarrelsome, rancorous, repugnant, set against, sore, spiteful, unlikable, venomous, vicious, virulent, vitriolic, wicked