0 used to refer to a mental or physical characteristic that someone has from birth:
1 possessed as a characteristic from birth:
Both characters are congenitally villainous, driven by some natural (or unnatural) inborn perversion.
Macrosomia might also be due to maternal diabetes mellitus during pregnancy, or inborn errors of metabolism might mimic overgrowth symptoms.
Better to posit inborn mechanisms mediating evaluations regarding altruism.
Although not all knowledge of language is inborn, some core aspects of it are.
The inborn state of dynamic receptivity for self/other interactions is, in good circumstances, validated and elaborated by actual experience.
These characteristics, he further maintained, "are in general a complicated product of inborn structure, the genetically determined course of maturation, and past experience" (p. 27).
For me, the "acquired" aspect has more importance than the "inborn".
This linguistic argument runs: children would not be able to learn a grammar unless they were endowed with inborn linguistic constraints.