inhospitable vs inhospitableness

inhospitable is not a noun while inhospitableness is a noun.

Word	Noun	Adjective	Verb	Adverb
inhospitable	No	Yes	No	No
inhospitableness	Yes	No	No	No

inhospitable (noun)	inhospitableness (noun)
	having an unfriendly and inhospitable disposition
	the environmental condition in a region that lacks a favorable climate or terrain for life or growth

inhospitable (adjective)	inhospitableness (adjective)
unfavorable to life or growth
not hospitable