bozo vs jackass

bozo and jackass both are nouns.

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

As nouns, bozo and jackass are synonyms defined as:

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

bozo (noun)	jackass (noun)
an informal term for a youth or man	male donkey
a man who is a stupid incompetent fool	a man who is a stupid incompetent fool