sentimentalism vs soupiness

sentimentalism and soupiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sentimentalism	Yes	No	No	No
soupiness	Yes	No	No	No

As nouns, soupiness is a hypernym of sentimentalism; that is, soupiness is a word with a broader meaning than sentimentalism:

Other hypernyms of sentimentalism include drippiness, mawkishness, mushiness, sentimentality, sloppiness.

sentimentalism (noun)	soupiness (noun)
a predilection for sentimentality	the property of having the thickness of heavy cream
the excessive expression of tender feelings, nostalgia, or sadness in any form	falsely emotional in a maudlin way