tired vs commonplace

tired is not a noun while commonplace is a noun.

Word	Noun	Adjective	Verb	Adverb
tired	No	Yes	No	No
commonplace	Yes	Yes	No	No

As adjectives, tired and commonplace are synonyms defined as:

Other synonyms of tired include banal, hackneyed, old-hat, shopworn, stock, threadbare, timeworn, trite, well-worn.

tired (noun)	commonplace (noun)
	a trite or obvious remark

tired (adjective)	commonplace (adjective)
depleted of strength or energy	not challenging; dull and lacking excitement
repeated too often; overfamiliar through overuse	repeated too often; overfamiliar through overuse
	completely ordinary and unremarkable