noun
drifting clouds
Literary or poetic term for clouds moving across the sky. Often used in set phrases like 行雲流水 (こううんりゅうすい) to describe a natural, unforced flow.
空には行雲が流れていた。
Drifting clouds were moving across the sky.
彼の文章は行雲流水のごとく自然だ。
His writing flows as naturally as drifting clouds and flowing water.