irresolubilis

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

irrĕsŏlūbĭlis (inr-), e, adj. [2. in-resolubilis],

indissoluble : nexus, Ap. Dogm. Plat. 2, p. 19, 22; Amm. 30, 4.