opposites
n. plural-only A2 Elementary US //ˈɑpəzəts// UK //ˈɒpəsˌɪts// op·po·sites
n. two things that are as different as possible from each other. For example, hot and cold or black and white are opposites.
n. people or things that are completely different from each other in nature, direction, or quality.
Black and white are opposites.
The two brothers have completely different personalities; they are total opposites in almost every way.
In many classic stories, the protagonist and the antagonist represent moral opposites, serving to highlight the conflict between selfless virtue and destructive greed.
Usage
Often used in the plural form to describe a pair of contrasting items or people.