1. A compound suffix in adjectives of Latin origin, as in Adscriptitious, adventitious, commentitious, oonductitious, factitious, fictitious, supposititious, etc., or formed on the Latin type, as abstractions, adscititious

2. Conjectural: 1 adj based primarily on surmise rather than adequate evidence “theories about the extinction of dinosaurs are still highly Conjectural ” Synonyms: circumstantial , divinatory , hypothetic , hypothetical , supposed , suppositional , suppositious , supposititious theoretic , theoretical concerned primarily with theories or