drunk vs inebriated

drunk is a noun but inebriated is not a noun.

Word	Noun	Adjective	Verb	Adverb
drunk	Yes	Yes	No	No
inebriated	No	Yes	No	No

As adjectives, drunk and inebriated are synonyms defined as:

drunk and inebriated: stupefied or excited by a chemical substance (especially alcohol)

Other synonyms of drunk include gone, intoxicated, ripped.

drunk (noun)	inebriated (noun)
a chronic drinker
someone who is intoxicated

drunk (adjective)	inebriated (adjective)
stupefied or excited by a chemical substance (especially alcohol)	stupefied or excited by a chemical substance (especially alcohol)
as if under the influence of alcohol