1. rival; opponent; adversary; competitor; enemy (esp. one with which there is longstanding enmity); foeSee also 仇 あだ, See also 敵 てき, usu. pronounced がたき when used as a suffix
A highly acclaimed play has been revived and it is interesting because, thanks to the skill of the director, this time the reason why the antagonist came to feel hostility towards the protagonist is depicted.— Jreibun