smiling vs cheerful

smiling is a noun but cheerful is not a noun.

Word	Noun	Adjective	Verb	Adverb
smiling	Yes	Yes	No	No
cheerful	No	Yes	No	No

smiling (noun)	cheerful (noun)
a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement

smiling (adjective)	cheerful (adjective)
smiling with happiness or optimism	being full of or promoting cheer; having or showing good spirits
	pleasantly (even unrealistically) optimistic