metaphysical

他的理论探讨了超越物质世界的形而上学问题。

His theories delve into ___metaphysical questions beyond the physical world.

他的哲学观点太过玄奥，没人能真正理解。

His philosophical ideas were so ___metaphysical that no one could truly grasp them.

她的论文探讨了意识和现实之间关系的形而上学问题。

Her thesis explores the ___metaphysical relationship between consciousness and reality.