天然- Wiktionary
天然 (tiānrán) can only be used as an attributive to describe things that are literally produced by nature. Unlike the usual term for natural, 自然 (zìrán), it cannot be ...
更多資訊〈translation - What does it mean when a Japanese called you 天然 ...〉
更多資訊〈天然- English translation - bab.la Japanese-English dictionary〉