imprĕtĭābĭlis — Lewis & Short
imprĕtĭābĭlis (inp-), e, adj.2. inpretium,
I priceless, invaluable, inestim tble:
sanitatis munus,Cassiod. Var. 9, 6 fin.:
notitia litterarum,id. ib. 11, 1 al.