noun
metaphysics
The branch of philosophy dealing with the fundamental nature of reality, being, and the world.
形而上学は、存在の根本原理を探求する学問です。
Metaphysics is the study that investigates the fundamental principles of existence.
The term is a Japanese coinage from the Chinese translation of 'metaphysics', composed of 形 (form), 而 (and yet), 上 (above), and 学 (study), literally 'the study of what is beyond form'.