build something in

included

(of diseases etc) present at or before birth

inborn

(of a quality) possessed (by a person or animal) at birth

natural

(of habits, tendencies etc) deeply fixed; going deep

deep-rooted

existing as a natural and permanent part or quality of

basic, hereditary

(of value, quality) belonging to, existing within, what is essential and natural (not caused or produced from outside)

basic, inborn