An alternative or archaic form of 'agonistic,' meaning relating to struggle, competition, or the action of agonists on biological receptors.
An extended form of 'agonistic,' created by adding the suffix '-al' to the adjective, which was more common in older usage patterns.
This is the kind of word that shows how English was more flexible with its suffixes in the past—you might see 'agonistical' in older philosophical or scientific texts, but modern writers prefer the cleaner 'agonistic.'
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