complex vs simple

complex and simple both are nouns.

Word	Noun	Adjective	Verb	Adverb
complex	Yes	Yes	No	No
simple	Yes	Yes	No	No

complex (noun)	simple (noun)
a whole structure (as a building) made up of interconnected or related structures	a person lacking intelligence or common sense
a conceptual whole made up of complicated and related parts	any herbaceous plant having medicinal properties
(psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
a compound described in terms of the central atom to which other atoms are bound or coordinated

complex (adjective)	simple (adjective)
complicated in structure; consisting of interconnected parts	(botany) of leaf shapes; of leaves having no divisions or subdivisions
difficult to analyze or understand	having few parts; not complex or complicated or involved
	easy and not involved or complicated
	exhibiting childlike simplicity and credulity
	unornamented
	lacking mental capacity and subtlety
	apart from anything else; without additions or modifications