Adjektive
vindictive [ more vindictive ; most vindictive ]
vengeful [ more vengeful ; most vengeful ]
spiteful [ more spiteful ; most spiteful ]
malevolent [ more malevolent ; most malevolent ]
malicious [ more malicious ; most malicious]
catty [ cattier ; cattiest ]
hateful [ more hateful ; most hateful ]
despiteful [ more despiteful ; most despiteful ]
rancorous [ more rancorous ; most rancorous ]
cattish [ more cattish ; most cattish ]
venomous [ more venomous ; most venomous ]