sloppiness vs mushiness

sloppiness and mushiness both are nouns.

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

As nouns, sloppiness and mushiness are synonyms defined as:

Other synonyms of sloppiness include drippiness, mawkishness, sentimentality, soupiness.

sloppiness (noun)	mushiness (noun)
the quality of not being careful or taking pains	a mushy pulpy softness
falsely emotional in a maudlin way	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