vagueness vs haziness

vagueness and haziness both are nouns.

Word	Noun	Adjective	Verb	Adverb
vagueness	Yes	No	No	No
haziness	Yes	No	No	No

As nouns, haziness is a hyponym of vagueness; that is, haziness is a word with a more specific, narrower meaning than vagueness:

vagueness: unclearness by virtue of being poorly expressed or not coherent in meaning
haziness: vagueness attributable to being not clearly defined

vagueness (noun)	haziness (noun)
unclearness by virtue of being poorly expressed or not coherent in meaning	cloudiness resulting from haze or mist or vapor
indistinctness of shape or character	vagueness attributable to being not clearly defined