(ˈ)in.|testəbəl, ən.ˈt- adjective
Etymology: Late Latin intestabilis, from Latin, execrable, accursed, from in- in- (I) + testari to be a witness, make a will + -abilis -able
1. : not competent to make a will
an intestable minor
insane and intestable
2. obsolete : incompetent to be a witness