thetic \THET-ik, adjective:

Positive; dogmatic.

Thetic constructions, on the other hand, are not subject to this sort of contextual requirements.
— Andreas Dufter and Daniel Jacob, Focus and Background in Romance Languages

His genius was not thetic, but synthetic, not creative but constructive.
— Andrew Martin Fairbairn, “The Primitive Polity of Islam,” The Contemporary Review

Thetic is derived from the Greek word thetikós from the root thet meaning “placed, set.”