clear sky; cloudless sky
Describes a sky without clouds after rain or in fine weather. Often used in descriptive or poetic contexts.
雨が上がって、晴れた空が広がった。
The rain stopped and a clear sky spread out.
今日は雲一つない晴れた空だ。
Today there is a cloudless sky.
Phrase composed of the past tense of 晴れる (to clear up) and 空 (sky).