unprisonunprison means to liberate from prison. Lexicurio rates it Sui generis — a strength score of 87 out of 100.EtymologyFrom un- + prison.verbTo liberate from prison.Down the rabbit holeEvery word is a door. Follow one.Near rhymesunbiddenascriptionmulliganunchristianelytronemictionhuntingtonhutchinsonomicronrepublicansullivan