Synonyms of wreakful

1 Syllable
cruel, grim
2 Syllables
ruthless, grudging
3 Syllables
malicious, venomous, spiteful, resentful, merciless, rancorous, relentless, vengeful, avenging, malignant
4 Syllables
unforgiving, implacable, unrelenting, vindictive
5 Syllables
retaliatory