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inborn; innate; inherent; congenital; hereditary
a priori
彼女には先天的な音楽の才能がある。
She has an innate talent for music.
先天的な障害を持って生まれた子供だ。
The child was born with a congenital disability.
先天的なものか後天的なものか調べる。
We investigate whether it's innate or acquired.