oaf vs stumblebum

oaf and stumblebum both are nouns.

Word	Noun	Adjective	Verb	Adverb
oaf	Yes	No	No	No
stumblebum	Yes	No	No	No

As nouns, oaf and stumblebum are synonyms defined as:

Other synonyms of oaf include clod, gawk, goon, lout, lubber, lummox, lump.

oaf (noun)	stumblebum (noun)
an awkward stupid person	an awkward stupid person
	a second-rate prize fighter