xíng​yún​liú​shuǐ

fluent

行云流水 (行雲流水) xíng​yún​liú​shuǐ
fluent idiom
a very natural, flowing, and unforced style of calligraphy, writing, or performance
nature idiom
literal sense of moving clouds and flowing water

Frequency

Movie subtitles
0.300 per million appears in 0% of films
Written text
0.958 per million

Sources

Definitions
CC-CEDICT