Antithesis

Hegel (dialectic)

The negation or opposite of a thesis. In dialectic, the antithesis is not mere denial but the necessary counter-determination that must be integrated through sublation (synthesis) (Ch. 1.4, 24.4).

Origin

thesis; synthesis; dialectic; sublation; contradiction

In Hegel

Enz. §81 (in Hegel: das Dialektische [the dialectical moment]; "antithesis" is Kantian-Fichtean terminology)