awful vs nastiness

awful is not a noun while nastiness is a noun.

Word	Noun	Adjective	Verb	Adverb
awful	No	Yes	No	Yes
nastiness	Yes	No	No	No

awful (noun)	nastiness (noun)
	the quality of being highly unpleasant
	malevolence by virtue of being malicious or spiteful or nasty
	a state characterized by foul or disgusting dirt and refuse

awful (adjective)	nastiness (adjective)
offensive or even (of persons) malicious
causing fear or dread or terror
exceptionally bad or displeasing
extreme in degree or extent or amount or impact
inspiring awe or admiration or wonder
inspired by a feeling of fearful wonderment or reverence

awful (adverb)	nastiness (adverb)
used as intensifiers