sloppiness vs sloppy

sloppiness is a noun but sloppy is not a noun.

Word	Noun	Adjective	Verb	Adverb
sloppiness	Yes	No	No	No
sloppy	No	Yes	No	No

sloppiness (noun)	sloppy (noun)
the quality of not being careful or taking pains
falsely emotional in a maudlin way
a lack of order and tidiness; not cared for
the wetness of ground that is covered or soaked with water

sloppiness (adjective)	sloppy (adjective)
	marked by great carelessness
	excessively or abnormally emotional
	not fitting closely; hanging loosely
	lacking neatness or order
	(of soil) soft and watery
	wet or smeared with a spilled liquid or moist material