(a.) Characterized by, or of the nature of, an hypothesis; conditional; assumed without proof, for the purpose of reasoning and deducing proof, or of accounting for some fact or phenomenon.

a fortiori a posteriori a priori abstract academic analytic armchair assumed categorical conditional conjectural conjectured deductive dialectic discursive doubtful enthymematic epagogic guessed hypothesized hypothetic ideal imagined impractical inductive inferential maieutic moot notional postulatory presumed problematic putative reputed soritical speculative supposed suppositional supposititious suppositive suppository surmised suspected syllogistic synthetic theoretical transcendent transcendental