ordinary vs mundane

ordinary is a noun but mundane is not a noun.

Word	Noun	Adjective	Verb	Adverb
ordinary	Yes	Yes	No	No
mundane	No	Yes	No	No

ordinary (noun)	mundane (noun)
(heraldry) any of several conventional figures used on shields
an early bicycle with a very large front wheel and small back wheel
a clergyman appointed to prepare condemned prisoners for death
a judge of a probate court
the expected or commonplace condition or situation

ordinary (adjective)	mundane (adjective)
not exceptional in any way especially in quality or ability or size or degree	belonging to this earth or world; not ideal or heavenly
lacking special distinction, rank, or status; commonly encountered	found in the ordinary course of events
	concerned with the world or worldly matters