IPA: /ˈvɛn.dʒfəl.nəs/
KK: /ˈvɛnʤfəl/
The state of wanting to harm someone in return for a wrong done to you.
Her vengefulness made it hard for her to forgive those who had hurt her.
Vengefulness → It is formed from "venge" (from Old French *venger*, meaning to take revenge) and "-fulness" (meaning the state of being full of). The word "vengefulness" means the state of being full of a desire for revenge.
Think of the desire to 'take revenge' ('venge') and being 'full of' that desire ('-fulness'). This helps you remember that vengefulness refers to the state of wanting to get back at someone.