intrinsic

adj. Inherent, essential (intrinsic value).  intrinsically adv. [latin intrinsecus inwardly]

a. Inward; internal; hence, true; genuine; real; essential; inherent; not merely apparent or accidental; -- opposed to extrinsic; as, the intrinsic value of gold or silver; the intrinsic merit of an action; the intrinsic worth or goodness of a person.