Synonyms for Inborn (same or very similar meaning)
WordNet sense 1 (present at birth but not necessarily hereditary; acquired during fetal development):
congenital, innateWordNet sense 2 (not inheritable):
nonheritable, noninheritableWordNet sense 3 (normally existing at birth):
inbred, connaturalWordNet sense 4 (belonging to one by birth):
nativeFrom the ODE community, based on WordNetadd/edit