inferior vs indifferent

inferior is a noun but indifferent is not a noun.

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

inferior (noun)	indifferent (noun)
a character or symbol set or printed or written beneath or slightly below and to the side of another character
one of lesser rank or station or quality

inferior (adjective)	indifferent (adjective)
written or printed below and to one side of another character	(usually followed by `to') unwilling or refusing to pay heed
of or characteristic of low rank or importance	characterized by a lack of partiality
of low or inferior quality	fairly poor to not very good
having an orbit between the sun and the Earth's orbit	neither too great nor too little
lower than a given reference point	being neither good nor bad
falling short of some prescribed norm	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