qualifier vs adjective

qualifier and adjective both are nouns.

Word	Noun	Adjective	Verb	Adverb
qualifier	Yes	No	No	No
adjective	Yes	Yes	No	No

As nouns, adjective is a hyponym of qualifier; that is, adjective is a word with a more specific, narrower meaning than qualifier:

Other hyponyms of qualifier include intensifier, intensive, adverb, dangling modifier, misplaced modifier.

qualifier (noun)	adjective (noun)
a content word that qualifies the meaning of a noun or verb	a word that expresses an attribute of something
a contestant who meets certain requirements and so qualifies to take part in the next stage of competition	the word class that qualifies nouns

qualifier (adjective)	adjective (adjective)
	relating to court practice and procedure as opposed to the principles of law
	of or relating to or functioning as an adjective