antagonism

这两种药物混合会产生明显的对抗作用。

There is noticeable ___antagonism when these two medications are combined.

这两个团队之间的敌意明显影响了项目的进展。

The ___antagonism between the two teams clearly affected the project's progress.

这两种药物在体内的拮抗作用会影响治疗效果。

The ___antagonism between these two drugs in the body affects treatment outcomes.