necessitarian vs philosopher

necessitarian and philosopher both are nouns.

Word	Noun	Adjective	Verb	Adverb
necessitarian	Yes	No	No	No
philosopher	Yes	No	No	No

As nouns, philosopher is a hypernym of necessitarian; that is, philosopher is a word with a broader meaning than necessitarian:

necessitarian (noun)	philosopher (noun)
someone who does not believe the doctrine of free will	a specialist in philosophy
	a wise person who is calm and rational; someone who lives a life of reason with equanimity