adjectiveirregressĭbĭlisIRREGRESSIBILIS☆ KeepMeaningfrom which there is no returnLewis & Short 1879ModernAs printed, 1879IRREGRESSIBILISLEWIS & SHORTIRREGRESSIBILISirregressĭbĭlis (inr-), e, adj. 2. inregressio, I. from which there is no return (eccl. Lat.): transgressio, Aug. Civ. Dei, 8, 22.Read the whole entry