天性

nature / innate tendency

day / sky / heaven

nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:個|个[ge4]

congenital / intrinsic / innateness

congenital; intrinsic; innate

acquired (characteristic etc)

birth defect