"Antagonist" is a word in ENGLISH

antagonist ENGLISH
Definition:

Antagonistic; opposing; counteracting; as, antagonist
schools of philosophy.

antagonist ENGLISH
Definition:

A muscle which acts in opposition to another; as a
flexor, which bends a part, is the antagonist of an extensor, which
extends it.

antagonist ENGLISH
Definition:

A medicine which opposes the action of another medicine
or of a poison when absorbed into the blood or tissues.

antagonist ENGLISH
Definition:

One who contends with another, especially in combat; an
adversary; an opponent.

Few words of positivity

When you become a happier human being as a result of letting go of certain people or things, that's the universe's way of letting you know it was the right choice.

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Laugh your heart out.

FRED MONSTER: My sister must be twenty. I counted the rings under her eyes.BERT MONSTER: That's nothing. My sister's tongue is so long, she can lick an envelope after she's posted it.

adversary ENGLISH

One who is turned against another or others with a design to oppose or resist them; a member of an …

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party ENGLISH

Hence, any certain person who is regarded as being opposed or antagonistic to another.

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pit ENGLISH

To introduce as an antagonist; to set forward for or in a contest; as, to pit one dog against another.

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