One school of thought held that he was a victim of unproven rumors about Billy Langstrom's accident, spread to Denver by Billy's high school friends.
I want assurances from you and that horrid old Mr. O'Connor that the integrity of my family name will not be stained with unproven lies!
Why should I confuse you with unproven suppositions that may be totally irrelevant?
A fresh at ~mpt of the same kind was then made against Crispi by tF Radical leader Cavallotti, who advanced unproven charges of corruption and embezzlement.
Whatever its faults may be - and it is for our successors to judge of these - there is this to be said in its favour: that it is in nowise dogmatic. The eloquence of facts appeals to the scientific mind nowadays much more than the assertion of crude and unproven principles.
How would you define unproven? Add your definition here.