く	も
曇

る

Godan verb, intransitive verb

1. to get cloudy, to cloud over, to become overcast.
2. to cloud up, to fog up, to mist up, to become dim.
3. to be gloomy, to be clouded (expression), to be downcast.
4. to look slightly downward (of a noh mask; indicating sadness, grief, etc.). From 面曇る.