sentimentalism vs glop

sentimentalism and glop both are nouns.

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

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

sentimentalism: the excessive expression of tender feelings, nostalgia, or sadness in any form
glop: writing or music that is excessively sweet and sentimental

Other hyponyms of sentimentalism include mush, slop, treacle.

sentimentalism (noun)	glop (noun)
a predilection for sentimentality	writing or music that is excessively sweet and sentimental
the excessive expression of tender feelings, nostalgia, or sadness in any form	any gummy shapeless matter; usually unpleasant