反はん定てい立りつ

は

ん

て

い

り

つ

Meanings

1

noun

antithesis

A technical term in philosophy and logic, referring to a proposition that is the direct opposite of a thesis. Used in dialectical reasoning.

ヘーゲルの弁べん証しょう法ほうでは、テーゼに対たいして反はん定てい立りつが提てい示じされる。
In Hegel's dialectic, an antithesis is presented against the thesis.

anti-

定determine, fix, establish

立stand up, rise, set up

Similar words

アンチテーゼ
アンチテーゼ is the more common loanword for 'antithesis' in modern Japanese, while 反定立 is a less frequent kanji-based term used mainly in academic contexts.
正せい反はん対たい
正反対 means 'exact opposite' in a general sense, whereas 反定立 is specifically a philosophical antithesis.

Etymology

Compound of 反 (anti-) and 定立 (thesis, from 定 'fixed' + 立 'establish'). The term was likely coined in Japanese to translate the Western philosophical concept of antithesis.