unprovenly en · ADV
Etymology
From unproven + -ly.
Meanings
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(not-comparable) Without proof.
I am satisfied that there are many convicts in this prison unprovenly or unjustly confined, and that should have relief.
1881, Texas. Superintendent of State Penitentiaries, Report, page 155:Unlike Judson, who started life as a violinist and claimed (unprovenly) to have played the American premiere of Richard Strauss's sonata, Wilford never studied music and could, by some accounts, not read a simple piano score.
1991, Norman Lebrecht, The maestro myth: great conductors in pursuit of power, page 308: