uncloudedness vs unclouded

uncloudedness is a noun but unclouded is not a noun.

Word	Noun	Adjective	Verb	Adverb
uncloudedness	Yes	No	No	No
unclouded	No	Yes	No	No

uncloudedness (noun)	unclouded (noun)
the quality of clear water

uncloudedness (adjective)	unclouded (adjective)
	not made opaque or cloudy by sediment
	not mentally disordered
	(of sound or color) free from anything that dulls or dims
	free from clouds