بررسی نسبت معنای زشتی در فلسفه قرون وسطی با معنای زشتی در زیبایی‌شناسی جدید

The concept of ugliness and its quiddity is affected by its ontology changed. In this article the ugliness is discussed from two sides. At first the concept and quiddity of ugliness is discussed and is tried to give the analysis from ugliness and its meaning and then the ontology of ugliness is discussed; is it an existing category or nonexistent one. In Greek philosophy the ugliness was the nonexistent category. This point about ugliness was accepted by medieval philosophers like St. Augustine and St. Aquinas. The ugliness in that period was the formlessness but there is no pure formlessness thing in the universe. Everything has form and because it exist. The things that maybe imagine ugly, in fact are less beautiful. In that period ugliness was equivalent with evil. But in modern aesthetic ugliness become an existing category. It means that there is some ugly things in the universe and the question is about their feature not their existence.