Bungler

['bʌŋglɚ]

(noun.) someone who makes mistakes because of incompetence.

Editor: Stanton--From WordNet

(n.) A clumsy, awkward workman; one who bungles.

Checked by Candy

n. Lubber, fumbler, clumsy workman, bad hand (at any thing), fresh-water sailor.

Editor: Moore

SYN:Botcher, clown, lubber, fumbler, novice

ANT:Adept, adroit, master, artist, workman, proficient, professor

Typist: Morton

But, Margaret, what a bungler you are! Elizabeth Cleghorn Gaskell. North and South.
I did try, but was presently swept off the stool and denominated a little bungler. Charlotte Bronte. Jane Eyre.
Moore and Helstone are of 'earth's first blood'--no bunglers--no cravens---- A crash--smash--shiver--stopped their whispers. Charlotte Bronte. Shirley.

Checker: Stella