stigmatization vs disapproval

stigmatization and disapproval both are nouns.

Word	Noun	Adjective	Verb	Adverb
stigmatization	Yes	No	No	No
disapproval	Yes	No	No	No

As nouns, disapproval is a hypernym of stigmatization; that is, disapproval is a word with a broader meaning than stigmatization:

stigmatization (noun)	disapproval (noun)
the act of stigmatizing	the act of disapproving or condemning
	an inclination to withhold approval from some person or group
	the expression of disapproval
	a feeling of disliking something or what someone is doing