disparagement vs sad sack

disparagement and sad sack both are nouns.

Word	Noun	Adjective	Verb	Adverb
disparagement	Yes	No	No	No
sad sack	Yes	No	No	No

disparagement (noun)	sad sack (noun)
the act of speaking contemptuously of	someone who makes mistakes because of incompetence
a communication that belittles somebody or something