uncheerful vs cheer

uncheerful is not a noun while cheer is a noun.

Word	Noun	Adjective	Verb	Adverb
uncheerful	No	Yes	No	No
cheer	Yes	No	Yes	No

uncheerful (noun)	cheer (noun)
	the quality of being cheerful and dispelling gloom
	a cry or shout of approval

uncheerful (adjective)	cheer (adjective)
causing sad feelings of gloom and inadequacy

uncheerful (verb)	cheer (verb)
	become cheerful
	spur on or encourage especially by cheers and shouts
	show approval or good wishes by shouting
	cause (somebody) to feel happier or more cheerful
	give encouragement to