a posteriori; posteriority
Philosophical term contrasting with 先天 (a priori). Refers to knowledge or concepts derived from experience.
後天的な知識は経験から得られる。
A posteriori knowledge is obtained from experience.
この概念は後天のものだ。
This concept is a posteriori.
From 後 (after, later) and 天 (heaven, nature), literally 'after heaven'. The term is used in East Asian philosophy to denote what is acquired after birth, as opposed to innate qualities.