bungler
definition
a person who carries out tasks clumsily or ineptly
example
Despite his best efforts, Jake proved to be a complete bungler when it came to fixing the car, leaving it in worse shape than before.
synonyms
botcherclumsy oafincompetent
word origin — The term 'bungler' derives from the verb 'bungle,' which originated from the Scots word 'bung,' meaning to carry out a task clumsily or to bungle efforts, with influences from Middle English.