kiak-tshiú棘手

thorny

thorny; difficult to handle; thorny; troublesome; knotty; prickly; intractable

English Wiktionary, “棘手” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%A3%98%E6%89%8B · confidence: Medium (Wiktionary, Hokkien)