“Naturally occurring” in Japanese
Short answer
Naturally occurring in Japanese is “天生” (tensei). Full meaning: naturally occurring, nature, disposition, vocation, calling.
Other ways to say “Naturally occurring” in Japanese
天然由来
tennen'yurai naturally-derived, naturally-occurring
天然型
tennengata natural form (of a vitamin, etc.), native form, naturally occurring
Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.