Home › Words › U › unproveunproveunprove means to disprove.Among words judged in Lexicurio's Arena, unprove ranks #23,626 of 42,747 for Qualifying.EtymologyUn- + proveverbTo disprove.e.g.“[…] null hypothesis reasoning, with the highest priority given to unproving diagnoses that might be most serious for the patient […]” — 1989, Renée Claire Fox, The Sociology of Medicine: A Participant Observer's View, page 50:Definitions & examples from Wiktionary (CC BY-SA 3.0).