(a.) Of, pertaining to, derived from, or possessed by, an ancestor or ancestors; as, an ancestral estate.

aboriginal ancestorial antepatriarchal atavistic autochthonous fatherlike fatherly grandfatherly grandmotherly grandparental humanoid maternal mother motherlike motherly parent parental paternal patriarchal preadamite preglacial prehistoric prehuman prime primeval primitive primogenial primoprimitive primordial pristine protohistoric protohuman