Adjective
not proved
Source: WordNetAs for science and religion, the known and admitted facts are few and plain enough. All that the parsons say is unproved. All that the doctors say is disproved. That's the only difference between science and religion there's ever been, or will be. G. K. Chesterton
unproved allegations Source: Internet
unproved assumptions Source: Internet
This unproved statement put a strain on his relationship with Bolyai who thought that Gauss was "stealing" his idea. citation Letters from Gauss years before 1829 reveal him obscurely discussing the problem of parallel lines. Source: Internet
Parallel universes may or may not exist; the case is unproved. Source: Internet