bô-chhàu無臭

odorless

odorless; unscented; to not stink; to not be smelly; to go too far; to be beyond what is acceptable; to be unreasonable; to be excessive

English Wiktionary, “無臭” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E7%84%A1%E8%87%AD · confidence: Medium (Wiktionary)