goofball vs tomfool

goofball and tomfool both are nouns.

Word	Noun	Adjective	Verb	Adverb
goofball	Yes	No	No	No
tomfool	Yes	No	No	No

As nouns, tomfool is a hypernym of goofball; that is, tomfool is a word with a broader meaning than goofball:

Other hypernyms of goofball include fool, muggins, sap, saphead.

goofball (noun)	tomfool (noun)
a man who is a stupid incompetent fool	a person who lacks good judgment
a person who amuses others by ridiculous behavior