deadening vs constipation

deadening and constipation both are nouns.

Word	Noun	Adjective	Verb	Adverb
deadening	Yes	Yes	No	No
constipation	Yes	No	No	No

As nouns, deadening and constipation are synonyms defined as:

deadening and constipation: the act of making something futile and useless (as by routine)

Other synonyms of deadening include impairment, stultification.

deadening (noun)	constipation (noun)
the act of making something futile and useless (as by routine)	the act of making something futile and useless (as by routine)
	irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis

deadening (adjective)	constipation (adjective)
so lacking in interest as to cause mental weariness