fumbler vs butcher

fumbler and butcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
fumbler	Yes	No	No	No
butcher	Yes	No	Yes	No

As nouns, fumbler and butcher are synonyms defined as:

Other synonyms of fumbler include blunderer, botcher, bumbler, bungler, fuckup, sad sack, stumbler.

fumbler (noun)	butcher (noun)
someone who makes mistakes because of incompetence	a person who slaughters or dresses meat for market
	a brutal indiscriminate murderer
	a retailer of meat
	someone who makes mistakes because of incompetence

fumbler (verb)	butcher (verb)
	kill (animals) usually for food consumption