Plural form: systems of thought or movements that explicitly reject or oppose philosophical approaches to understanding the world.
Plural of antiphilosophy, formed by adding -ies. This represents the abstract concept of anti-philosophical thought patterns, from anti- (against) + philosophy.
It's fascinating that 'antiphilosophies' exist as organized systems—what you might call philosophies *against* philosophy, making them somewhat paradoxical, like a vegetarian meat-eater.
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