The Collaborative International Dictionary
Irreprovable
Irreprovable \Ir`re*prov"a*ble\, a. Incapable of being justly reproved; irreproachable; blameless; upright. -- Ir`re*prov"a*ble*ness, n. -- Ir`re*prov"a*bly, adv.
Wiktionary
irreprovable
a. Not reprovable; irreproachable.