inborn

1 being a part of the innermost nature of a person or thing an inborn talent for dancing Synonyms built-in, constitutional, constitutive, essential, hardwired, immanent, inherent, 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

2 genetically passed or capable of being passed from parent to offspring certain instincts are inborn in mice Synonyms genetic (also genetical), heritable, hereditary, inheritable, inheritedRelated Words congenital, inbred, inherent, innate, native, naturalNear Antonyms acquiredAntonyms nonhereditary