THESAURUS
suppositional
accounted as, alleged, arguable, assumed, assumptive, at issue, confutable, conjectural, conjectured, contestable, controversial, controvertible, debatable, deemed, deniable, disputable, doubtable, doubtful, dubious, dubitable, given, granted, hypothetical, iffy, in dispute, in doubt, in dubio, in question, inferred, mistakable, moot, open to doubt, open to question, postulated, postulational, premised, presumed, presumptive, problematic, putative, questionable, refutable, reputed, speculative, supposed, supposititious, suppositive, suppository, suspect, suspicious, taken for granted, understood
ROGET THESAURUS
suppositional
Supposition
N
supposition, assumption, assumed position, postulation, condition, presupposition, hypothesis, blue sky hypothesis, postulate, postulatum, theory, thesis, theorem, data, proposition, position, proposal, presumption, divination, conjecture, guess, guesswork, speculation, rough guess, shot, shot in the dark, conjecturality, surmise, suspicion, sneaking suspicion, estimate, approximation (nearness), inkling, suggestion, hint, intimation, notion, impression, bare supposition, vague supposition, loose supposition, loose suggestion, association of ideas, (analogy), metonym, metonymy, simile (metaphor), conceit, idea, thought, original idea, invention (imagination), supposing, given, mooted, postulatory, assumed, supposititious, suppositive, suppositious, gratuitous, speculative, conjectural, hypothetical, theoretical, academic, supposable, presumptive, putative,
suppositional, suggestive, allusive, if, if so be, an, on the supposition, ex hypothesi, in the case, in the event of, quasi, as if, provided, perhaps, for aught one knows.