inherent

Synonyms: built-in characteristic congenital connate constitutional deep-rooted deep-seated distinctive elementary essential fixed fundamental genetic immanent implicit inborn inbred inbuilt indigenous indispensable individual indwelling ingrained inherited innate inner instinctive integral integrated internal in the grain intimate intrinsic inward latent native natural original part and parcel resident running in the family subjective unalienable

Antonyms: acquired added external extrinsic incidental learned