humanitarian vs humanity

humanitarian and humanity both are nouns.

Word	Noun	Adjective	Verb	Adverb
humanitarian	Yes	Yes	No	No
humanity	Yes	No	No	No

humanitarian (noun)	humanity (noun)
someone devoted to the promotion of human welfare and to social reforms	all of the living human inhabitants of the earth
an advocate of the principles of humanism; someone concerned with the interests and welfare of humans	the quality of being humane
	the quality of being human

humanitarian (adjective)	humanity (adjective)
of or relating to or characteristic of humanitarianism
marked by humanistic values and devotion to human welfare