antagonist
US /ænˈtæɡ.ən.ɪst/
UK /ænˈtæɡ.ən.ɪst/
1.
antagonista, avversario
a person who actively opposes or is hostile to someone or something; an adversary.
:
•
The hero faced his main antagonist in the final battle.
L'eroe ha affrontato il suo principale antagonista nella battaglia finale.
•
She was a fierce antagonist of the new policy.
Era una fiera antagonista della nuova politica.