大材小用 [－－－－]

Jyutping daai6 coi4 siu2 jung6
Pinyin dà cái xiǎo yòng

Definitions (CC-CEDICT)
  1. using a talented person in an insignificant position (idiom)
  2. a sledgehammer to crack a nut
Definitions (粵典–words.hk)
  1. 語句
    好​叻​嘅​人​做​簡​單​、​唔​重要​嘅​工作​，​引指​浪費​人材
    to use the talented for unskilled work
Definitions (Wiktionary)
  1. phrase, idiomatic
    to use a talented person in an insignificant position; to use a sledgehammer to crack a nut
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）