1 adjective of ancestorssinseartha adj3sinsearach adj1 c m udúchais gs as adj c m uher ancestral homea baile dúchais, teach a muintireancestral rightscearta sinsearthaancestral spiritsspioraid na sinsear2 adjective relating to evolutionary ancestorssinsearach adj1 c m udúchasach adj1 c m uancestral relationshipgaol sinsearachta