na-adjective
transcendental; a priori
Primarily a philosophical term, used in contexts such as Kantian philosophy or discussions of a priori knowledge. Not common in everyday conversation.
カントの先験的観念論は西洋哲学に大きな影響を与えた。
Kant's transcendental idealism had a major influence on Western philosophy.
この命題は先験的に真であるとされる。
This proposition is considered to be true a priori.
アプリオリ is a direct loanword for 'a priori' and is used in similar philosophical contexts, but 先験的 is the native Japanese term with a slightly more formal or academic tone.
Compound of 先 (before, prior), 験 (test, verify), and the adjectival suffix 的. The term was coined in Japanese to translate the Western philosophical concept of 'transcendental' or 'a priori', likely during the Meiji period when many philosophical terms were created.