unpartible
/(ˌ)ʌnˈpɑːtɪbl/Now chiefly historical
adjective
Not partible, separable, or divisible; specifically (of property, especially land) not subject to partition among all heirs upon inheritance.
Origin
Early 16th century; earliest use found in Newe Landes & People found by Kynge of Portyngale. From un- + partible.