transcendental

US /ˌtræn.senˈden.t̬əl/
UK /ˌtræn.senˈden.t̬əl/
"transcendental" picture
1.

relating to a spiritual or nonphysical realm; beyond the limits of ordinary experience.

:
The philosopher discussed the concept of transcendental meditation.
She sought a transcendental experience through nature.
2.

(in Kantian philosophy) relating to the a priori or necessary conditions for knowledge.

:
Kant's critique explores the transcendental conditions of human understanding.
The concept of transcendental idealism is central to his philosophy.