Innate, inborn.
Born or originating in, native to a land or region, especially before an intrusion.
In particular, of or relating to a people (or their language or culture) that inhabited a region prior to the arrival of people of other cultures which became dominant (e.g., through colonialism), and which maintains a distinct culture.
Inborn; existing or having existed since birth.
Instinctive; coming from instinct.
Joined by the base to the very tip of a filament.
Originating in, or derived from, the constitution of the intellect, as opposed to acquired from experience.