na-adjective
spiritualistic; idealistic
Used in philosophical or religious contexts to describe a worldview that emphasizes spirit or mind over matter. Often appears in academic or formal writing.
彼の世界観は唯心的で、物質よりも精神を重視する。
His worldview is spiritualistic, valuing spirit over matter.
唯物論的 means 'materialistic', the opposite philosophical stance.
Derived from 唯心 (spiritualism/idealism) + 的 (adjectival suffix). 唯心 is a compound of 唯 (solely) and 心 (mind/spirit).