antagonistic

They were distinct, adverse, even antagonistic.

Though the tephrosia is a powerful agent, and, if carried too far beyond the antagonistic action of the poison, is, I presume, not entirely without danger, I have never known any bad symptoms to arise

And deputies from opposing parties, inherently more antagonistic than deputies from the same party, can be bought at a lower price.

The two countries are antagonistic to each other.

Why is Tom being so antagonistic?

Buddhists seem less antagonistic towards science than are Christians.