HYPOTHETIC

conjectural, divinatory, hypothetical, hypothetic, supposed, suppositional, suppositious, supposititious

(adjective) based primarily on surmise rather than adequate evidence; “theories about the extinction of dinosaurs are still highly conjectural”; “the supposed reason for his absence”; “suppositious reconstructions of dead languages”; “hypothetical situation”

Source: WordNet® 3.1

Adjective

hypothetic (comparative more hypothetic, superlative most hypothetic)

based on hypothesis or theory; hypothetical

existing as an abstract concept rather than a concrete reality

Source: Wiktionary

Hy`po*thet"ic, Hy`po*thet"ic*al, a. Etym: [L. hypotheticus, Gr. hypothétique.]

Definition: 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. Causes hypothetical at least, if not real, for the various phenomena of the existence of which our experience informs us. Sir W. Hamilton. Hypothetical baptism (Ch. of Eng.), baptism administered to persons in respect to whom it is doubtful whether they have or have not been baptized before. Hook.

– Hy`po*thet"ic*al*ly, adv. South.

Source: Webster’s Unabridged Dictionary 1913 Edition