A muscle that acts in opposition to another.
An opponent or enemy.
A chemical that binds to a receptor but does not produce a physiological response, blocking the action of agonist chemicals.
The main character or force opposing the protagonist in a literary work or drama.
One who antagonizes or stirs.
A European sword with a long, straight double-edged blade, a cruciform hilt, and a grip for two-handed use; prevalent from the 14th to 16th centuries.
Any type of sword that is comparatively long; depending on context, applied to swords of the Bronze Age, Migration period, Viking Age and Renaissance era.