- 灰蒙蒙 huīmēngmēng overcastdescribes an appearance that is dusky, hazy, or dim, such as the sky or weather
- 蒙蒙亮 mēngmēngliàng dawn(of the sky) beginning to get light; the first glimmer of light at daybreak
- 雾蒙蒙 wùméngméng mistyfoggy; misty; hazy
- 白蒙蒙 báiméngméng misty whitewhite and hazy; describes a vast expanse of mist, fog, or smoke that obscures the view
- 蒙蒙黑 mēngmēnghēi duskthe time of day just before it gets completely dark; twilight