fogginess vs foggy

fogginess is a noun but foggy is not a noun.

Word	Noun	Adjective	Verb	Adverb
fogginess	Yes	No	No	No
foggy	No	Yes	No	No

fogginess (noun)	foggy (noun)
the quality of being indistinct and without sharp outlines
an atmosphere in which visibility is reduced because of a cloud of some substance

fogginess (adjective)	foggy (adjective)
	filled or abounding with fog or mist
	indistinct or hazy in outline
	stunned or confused and slow to react (as from blows or drunkenness or exhaustion)
	obscured by fog