ò-biāu奧妙

profound

profound; complex; marvellous; profundity; profoundness; subtlety; marvel

English Wiktionary, “奧妙” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%A5%A7%E5%A6%99 · confidence: Medium (Wiktionary, Hokkien)