wateriness vs wetness

wateriness and wetness both are nouns.

Word	Noun	Adjective	Verb	Adverb
wateriness	Yes	No	No	No
wetness	Yes	No	No	No

As nouns, wetness is a hypernym of wateriness; that is, wetness is a word with a broader meaning than wateriness:

wateriness: the wetness of ground that is covered or soaked with water
wetness: the condition of containing or being covered by a liquid (especially water)

wateriness (noun)	wetness (noun)
the property of resembling the viscosity of water	the condition of containing or being covered by a liquid (especially water)
meagerness or poorness connoted by a superfluity of water (in a literary style as well as in a food)
the wetness of ground that is covered or soaked with water