narcotic vs habituation

narcotic and habituation both are nouns.

Word	Noun	Adjective	Verb	Adverb
narcotic	Yes	Yes	No	No
habituation	Yes	No	No	No

narcotic (noun)	habituation (noun)
a drug that produces numbness or stupor; often taken for pleasure or to reduce pain; extensive use can lead to addiction	a general accommodation to unchanging environmental conditions
	being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)

narcotic (adjective)	habituation (adjective)
of or relating to or designating narcotics
inducing stupor or narcosis
inducing mental lethargy