INFRANGIBLE Meaning of INFRANGIBLE in English adj. 1 unbreakable. 2 inviolable. infrangibility n. infrangibleness n. infrangibly adv.[ obs.F infrangible or med.L infrangibilis (as IN-(1), FRANGIBLE) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012