Conjectural

(a.) Dependent on conjecture; fancied; imagined; guessed at; undetermined; doubtful.

Thesaurus Entries

abstract, academic, arguable, armchair, at issue, confutable, contestable, controversial, controvertible, debatable, deniable, disputable, doubtable, doubtful, dubious, dubitable, hypothetic, hypothetical, ideal, iffy, impractical, in dispute, in doubt, in dubio, in question, mistakable, moot, notional, open to doubt, open to question, postulatory, problematic, putative, questionable, refutable, reputed, speculative, suppositional, supposititious, suppositive, suppository, suspect, suspicious, theoretical