suppositional
41disputable — I adjective admitting of doubt, ambiguous, apocryphal, appealing to reason, arguable, arguing, argumentative, at issue, confutable, conjectural, contestable, controversial, controvertible, cryptic, debatable, deniable, disputatious, doubtable,… …
42doubtful — I adjective arguable, at issue, conditional, conjectural, contestable, controvertible, debatable, disbelieving, disposed to question, disputable, distrustful, doubtable, doubting, dubious, dubitable, dubius, equivocal, implausible, improbable, in …
43dubious — I adjective ambiguous, anceps, arguable, chancy, conditional, confusing, confutable, contestable, contingent, controversial, controvertible, debatable, dependent, disputable, doubtful, dubitative, dubius, equivocal, fallible, hazy, in dispute, in …
44ill-founded — I adjective apocryphal, baseless, empty, erroneous, fallacious, false, fanciful, groundless, inaccurate, incorrect, insubstantial, sophistic, sophistical, suppositional, trumped up, unbased, unconfirmed, unfounded, ungrounded, unsubstantial,… …
45plausible — I adjective accepted, apparent, arguable, believable, cogitable, colorable, commanding belief, conceivable, conjecturable, convincing, credible, defensible, demanding belief, deserving belief, feasible, grantable, imaginable, justifiable,… …
46speculative — spec·u·la·tive / spe kyə lə tiv, ˌlā / adj 1: involving, based on, or constituting intellectual speculation; also: theoretical rather than demonstrable speculative medical testimony concerning the cause of death 2: of, relating to, or being a… …
47theoretical — I adjective abstract, academic, assumed, conjectural, doctrina, doctrinaire, hypothetical, ideational, ideative, ideological, impractical, open to proof, philosophical, postulated, postulatory, presumed, presumptive, pure, ratio, speculative,… …
48unfounded — I adjective baseless, empty, erroneous, fabricated, fallacious, false, fictitious, fictus, fraudulent, groundless, idle, illogical, insubstantial, invented, spurious, suppositional, supposititious, trumped up, unattested, unauthenticated,… …
49unsupported — I adjective based on conjecture, baseless, groundless, not authenticated, not established, not substantiated, suppositional, supposititious, unabetted, unaided, unassisted, unattested, unauthenticated, unbacked, uncertified, uncollaborated,… …
50alleged — Synonyms and related words: accountable, accounted as, affirmed, announced, ascribable, asserted, asseverated, assignable, assumed, assumptive, attested, attributable, attributed, averred, avouched, avowed, certified, charged, claimed, compare,… …
