Synonyms of unproven

1 Syllable

moot

2 Syllables

vague, dubious, cryptic, occult, iffy, fishy, suspect, untried, shady

3 Syllables

unsettled, contingent, unproved, mysterious, arguable, obscure, unfounded, untested, suspicious, ambiguous

4 Syllables

questionable, unreliable, enigmatic, apocryphal, controversial, debatable, undefined, conceptive, oracular, equivocal, problematic, disputable, dubitable, unconfirmed, unverified, provisional

5 Syllables

speculative, indefinite, hypothetical, formularized, controvertible, paradoxical, problematical, undetermined, indecisive, undemonstrated

6 Syllables

indeterminate