awfulness vs awful

awfulness is a noun but awful is not a noun.

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

awfulness (noun)	awful (noun)
a quality of extreme unpleasantness

awfulness (adjective)	awful (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

awfulness (adverb)	awful (adverb)
	used as intensifiers