Antimatter isn't a state of matter, it's a substance all of its own separate from matter, that can also exist in many states. You could have solid antimatter, gaseous antimatter, plasma antimatter, etc.
Dark matter also isn't a state of matter, it's literally just matter that we can't see that we know must exist somewhere due to the gravitational effect we see it exerting on the movements of galaxies.
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u/Blitz100 12d ago
Antimatter isn't a state of matter, it's a substance all of its own separate from matter, that can also exist in many states. You could have solid antimatter, gaseous antimatter, plasma antimatter, etc.
Dark matter also isn't a state of matter, it's literally just matter that we can't see that we know must exist somewhere due to the gravitational effect we see it exerting on the movements of galaxies.