goofball vs bozo

goofball and bozo both are nouns.

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

As nouns, goofball and bozo are synonyms defined as:

Other synonyms of goofball include cuckoo, fathead, goof, goose, jackass, twat, zany.

goofball (noun)	bozo (noun)
a man who is a stupid incompetent fool	an informal term for a youth or man
a person who amuses others by ridiculous behavior	a man who is a stupid incompetent fool