impretiabilis

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

imprĕtĭābĭlis (inp-), e, adj. [2. inpretium],

priceless , invaluable , inestim tble : sanitatis munus, Cassiod. Var. 9, 6 fin. : notitia litterarum, id. ib. 11, 1 al.