When the sky is overcast, it has the quality of cloudiness. Your favorite days at the beach might be when cloudiness keeps everyone else away!

You can use this noun for the state of being overcast or foggy, like the cloudiness at the top of a mountain or the cloudiness that makes it impossible to watch a meteor shower. It's also good for something that's unclear or vague, whether it's water or ideas. So the cloudiness of a pond might keep you from diving in, and the cloudiness of a philosopher's writing may leave you more confused than before you opened the book.

Definitions of cloudiness
  1. noun
    the quality of being cloudy
    synonyms: muddiness, murkiness
    see moresee less
    turbidity, turbidness
    muddiness created by stirring up sediment or having foreign particles suspended
    haziness, mistiness, steaminess, vaporousness, vapourousness
    cloudiness resulting from haze or mist or vapor
    type of:
    opacity, opaqueness
    the quality of being opaque to a degree; the degree to which something reduces the passage of light
  2. noun
    the state of the sky when it is covered by clouds
    synonyms: cloud cover, overcast
    see moresee less
    type of:
    bad weather, inclemency, inclementness
    weather unsuitable for outdoor activities
  3. noun
    gloomy semidarkness caused by cloud cover
    synonyms: overcast
    see moresee less
    type of:
    partial darkness
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week