built-in

Synonyms

constitutional, constitutive, essential, hardwired, immanent, inborn, inbred, indigenous, ingrain, ingrained (also engrained), inherent, innate, integral, intrinsic, native, natural;

Antonyms

adventitious, extraneous, extrinsic;

Near Antonyms

alien, foreign;

accidental, coincidental, incidental;

acquired;

superficial, surface;

exterior, external;

Related Words

basic, deep-rooted, elemental, fundamental;

congenital, hereditary, inherited, inmost, inner, interior;

internal;

characteristic, distinctive, peculiar;

habitual, inveterate;

normal, regular, typical;

Phrases

in one's blood;