vindictive
Concise Oxford English Dictionary © 2008 Oxford University Press:
vindictive /vɪnˈdɪktɪv/
▶adjective having or showing a strong or unreasoning desire for revenge.
– derivatives
vindictively adverb,
vindictiveness noun.
vindictively adverb,
vindictiveness noun.
'vindictive' also found in these Oxford entries:

