turbidness vs muddiness

turbidness and muddiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
turbidness	Yes	No	No	No
muddiness	Yes	No	No	No

As nouns, muddiness is a hypernym of turbidness; that is, muddiness is a word with a broader meaning than turbidness:

turbidness: muddiness created by stirring up sediment or having foreign particles suspended
muddiness: the quality of being cloudy

Other hypernyms of turbidness include cloudiness, murkiness.

turbidness (noun)	muddiness (noun)
muddiness created by stirring up sediment or having foreign particles suspended	the quality of being cloudy
	a mental state characterized by a lack of clear and orderly thought and behavior
	the wetness of ground that is covered or soaked with water