Synonyms of unproved

1 Syllable
new
2 Syllables
untried
3 Syllables
theoretic, unexpert, unproven, untested
4 Syllables
unpracticed, trial-and-error, unverified, unattempted, illogical, conceptive, theoretical, ideational
5 Syllables
experimental, speculative, formularized, undemonstrated