na-adjective
Used in academic or formal contexts to describe qualities, abilities, or characteristics that are present from birth or intrinsic to something.
言語能力は生得的なものだという説がある。
There is a theory that language ability is innate.
His innate talent was evident from a young age.
本能的 means 'instinctive', emphasizing behavior driven by instinct rather than learned, while 生得的 focuses on the inherent nature of a trait or ability.
Compound of 生得 (せいとく, 'innate') + 的 (てき, '-like, -ic'). 生得 itself is from 生 (せい, 'life, birth') and 得 (とく, 'obtain').