渾然天成 [浑－－－]

Jyutping wan4 jin4 tin1 sing4
Pinyin hún rán tiān chéng

Definitions (CC-CEDICT)
  1. to resemble nature itself
  2. of the highest quality (idiom)
Definitions (粵典–words.hk)
  1. 形容詞
    自然​形成​，​冇​刻意​斧​鑿​嘅​痕​跡​，​用以​形容​藝術​水準​自然​完美
    of quality of the nature (of art and ability)