Haziness is a quality of being foggy, cloudy, or out of focus. The haziness at sea today means that it will be difficult for you to navigate your sailboat.

There's weather-related haziness, which is caused by water particles or dust and smoke, like the haziness you see in Los Angeles on hot days. There's also a figurative type of haziness that relates to anything vague or undefined: "The haziness of my memory makes me unsure if this happened in 2008 or 2009." The noun haziness stems from hazy, which we know has a nautical origin but is otherwise a mystery.

Definitions of haziness
  1. noun
    cloudiness resulting from haze or mist or vapor
    synonyms: mistiness, steaminess, vaporousness, vapourousness
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    type of:
    cloudiness, muddiness, murkiness
    the quality of being cloudy
  2. noun
    vagueness attributable to being not clearly defined
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    type of:
    unclearness by virtue of being poorly expressed or not coherent in meaning
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