唯ゆい理り論ろんゆいりろんMeanings1nounrationalismPhilosophical term referring to the doctrine that reason is the primary source of knowledge, often contrasted with empiricism.デカルトは唯ゆい理り論ろんの代だい表ひょう的てきな哲てつ学がく者しゃだ。Descartes is a representative philosopher of rationalism.
