Rencorosa (en. Resentful)
/ren.koˈro.sa/
Slang Meanings
A person who does not forget offenses.
That girl is vengeful, you can't argue with her about anything.
Esa chica es una rencorosa, no se le puede discutir nada.
Someone who is always looking to take revenge.
Be careful, if you do something bad to her, she will get back at you because she is very resentful.
Cuidado, si le haces algo malo, te lo va a devolver porque es muy rencorosa.