indifferent vs ordinary

indifferent is not a noun while ordinary is a noun.

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

indifferent (noun)	ordinary (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

indifferent (adjective)	ordinary (adjective)
(usually followed by `to') unwilling or refusing to pay heed	not exceptional in any way especially in quality or ability or size or degree
characterized by a lack of partiality	lacking special distinction, rank, or status; commonly encountered
fairly poor to not very good
neither too great nor too little
being neither good nor bad
showing no care or concern in attitude or action
(often followed by `to') lacking importance; not mattering one way or the other
marked by a lack of interest
having only a limited ability to react chemically; chemically inactive
marked by no especial liking or dislike or preference for one thing over another