soupiness vs shmaltz

soupiness and shmaltz both are nouns.

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

As nouns, shmaltz is a hyponym of soupiness; that is, shmaltz is a word with a more specific, narrower meaning than soupiness:

Other hyponyms of soupiness include corn, schmaltz, schmalz, sentimentalism.

soupiness (noun)	shmaltz (noun)
the property of having the thickness of heavy cream	(Yiddish) excessive sentimentality in art or music
falsely emotional in a maudlin way