Cloudiness; cloudy weather—when the sky is covered with clouds and the sun is obscured.
今日は一日中曇りの予報だ。
The forecast is cloudy all day today.
曇りなので写真を撮るなら光に注意して。
It's cloudy, so watch the lighting if you're taking photos.
朝は晴れていたが、昼前から曇りになった。
It was sunny in the morning, but it turned cloudy before noon.
Fogging or blurring (on mirrors, glasses, surfaces) or a cloudy/blurred appearance (e.g., a film or dimness).
寒い部屋で熱いコーヒーを持つと、眼鏡が曇りやすい。
If you hold hot coffee in a cold room, your glasses fog up easily.
古いガラスは曇りが入って中が見えにくい。
Old glass has cloudiness that makes it hard to see through.
レンズの曇りを拭いてから撮影しよう。
Wipe the lens clear of fog before shooting.
A feeling of gloom or dejection; a melancholic or downcast mood.
最近なんとなく気分が曇りがちで、外に出るのも億劫だ。
Lately I've been feeling somewhat down and reluctant to go out.
その出来事のせいで彼の心は曇ってしまった。
That event cast a shadow over his heart/mood.