vindictive

Adjective

• showing malicious ill will and a desire to hurt; motivated by spite
  • a despiteful fiend
    
  • a truly spiteful child
    
  • a vindictive man will look for occasions for resentment
    

• disposed to seek revenge or intended for revenge
  • more vindictive than jealous love- Shakespeare
    
  • punishments...essentially vindictive in their nature- M.R.Cohen
    

Related words

• Synonyms: 
  despiteful , spiteful , revengeful , vengeful