adjective vs substantive

adjective and substantive both are nouns.

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

adjective (noun)	substantive (noun)
a word that expresses an attribute of something	any word or group of words functioning as a noun
the word class that qualifies nouns

adjective (adjective)	substantive (adjective)
relating to court practice and procedure as opposed to the principles of law	defining rights and duties as opposed to giving the rules by which rights and duties are established
of or relating to or functioning as an adjective	of or relating to the real nature or essential elements of something
	being on topic and prompting thought