hardwired

being a part of the innermost nature of a person or thing a cat with a hardwired compulsion to knock expensive knickknacks off of shelves Synonyms built-in, constitutional, constitutive, essential, inherent, immanent, inborn, inbred, indigenous, ingrain, ingrained (also engrained), innate, integral, intrinsic, native, naturalRelated Words basic, deep-rooted, elemental, fundamental; congenital, hereditary, inherited, inmost, inner, interior; internal; characteristic, distinctive, peculiar; habitual, inveterate; normal, regular, typicalNear Antonyms alien, foreign; accidental, coincidental, incidental; acquired, adscititious; superficial, surface; exterior, externalAntonyms adventitious, extraneous, extrinsic