wickedness vs nefariousness

wickedness and nefariousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
wickedness	Yes	No	No	No
nefariousness	Yes	No	No	No

As nouns, wickedness and nefariousness are synonyms defined as:

Other synonyms of wickedness include ugliness, vileness.

wickedness (noun)	nefariousness (noun)
morally objectionable behavior	the quality of being wicked
the quality of being wicked
estrangement from god
the quality of being disgusting to the senses or emotions
absence of moral or spiritual values