質樸無華 [质朴无华]

Jyutping zat1 pok3 mou4 waa4
Pinyin zhì pǔ wú huá

Definitions (粵典–words.hk)
  1. 形容詞
    簡單​；​樸素​；​冇​奢侈​浮​誇​嘅​裝​飾
    simple, plain and unadorned