unfairness vs wrongful conduct

unfairness and wrongful conduct both are nouns.

Word	Noun	Adjective	Verb	Adverb
unfairness	Yes	No	No	No
wrongful conduct	Yes	No	No	No

As nouns, wrongful conduct is a hypernym of unfairness; that is, wrongful conduct is a word with a broader meaning than unfairness:

Other hypernyms of unfairness include actus reus, misconduct, wrongdoing.

unfairness (noun)	wrongful conduct (noun)
an unjust act	activity that transgresses moral or civil law
injustice by virtue of not conforming with rules or standards
partiality that is not fair or equitable