CONJECTURAL
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
Etymology
Adjective
conjectural (comparative more conjectural, superlative most conjectural)
In the nature of a conjecture, or based on a conjecture.
Synonyms
• hypothetical
Noun
conjectural (plural conjecturals)
Something that is conjectural; a conjecture.
Source: Wiktionary
Con*jec"tur*al, a. Etym: [L. conjecturalis: cf. F. conjectural.]
Definition: Dependent on conjecture; fancied; imagined; guessed at;
undetermined; doubtful.
And mak'st conjectural fears to come into me. Shak.
A slight expense of conjectural analogy. Hugh Miller.
Who or what such editor may be, must remain conjectural. Carlyle.
Source: Webster’s Unabridged Dictionary 1913 Edition