selfishness vs unselfishness

selfishness and unselfishness both are nouns.

Word	Noun	Adjective	Verb	Adverb
selfishness	Yes	No	No	No
unselfishness	Yes	No	No	No

selfishness (noun)	unselfishness (noun)
stinginess resulting from a concern for your own welfare and a disregard of others	acting generously
	the quality of not putting yourself first but being willing to give your time or money or effort etc. for others