All 6 Uses of

antagonist
in
The War of the Worlds

And meanwhile the military and naval authorities, now fully alive to the tremendous power of their antagonists, worked with furious energy.†
Chpt 1.13 *

antagonists = people who offer opposition or are hostile

One may picture, too, the sudden shifting of the attention, the swiftly spreading coils and bellyings of that blackness advancing headlong, towering heavenward, turning the twilight to a palpable darkness, a strange and horrible antagonist of vapour striding upon its victims, men and horses near it seen dimly, running, shrieking, falling headlong, shouts of dismay, the guns suddenly abandoned, men choking and writhing on the ground, and the swift broadening-out of the opaque cone of smoke.†
Chpt 1.15

antagonist = someone who offers opposition or is hostile

One of the men desisted and turned towards him, and my brother, realising from his antagonist's face that a fight was unavoidable, and being an expert boxer, went into him forthwith and sent him down against the wheel of the chaise.†
Chpt 1.16

He heard the clatter of hoofs, the whip stung across his face, a third antagonist struck him between the eyes, and the man he held wrenched himself free and made off down the lane in the direction from which he had come.†
Chpt 1.16

Suddenly he stumbled and fell; his immediate pursuer went headlong, and he rose to his feet to find himself with a couple of antagonists again.†
Chpt 1.16

antagonists = people who offer opposition or are hostile

It would seem they were regarding this new antagonist with astonishment.†
Chpt 1.17

antagonist = someone who offers opposition or is hostile

Definitions:

(1) (antagonist as in: the antagonist in the film)
someone who offers opposition or is hostile
(2) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Specialized Definitions of antagonist:
- literature or storytelling: the most important character who opposes the main character or protagonist
- physiology: a muscle that relaxes when another muscle contracts
- chemistry and biology: a substance that interferes with the effect of another substance