THESAURUS
butterfingers
clumsy, dub, duffer, foozler, foul-up, fumble-fist, goof, goofball, goofer, hick, lummox, lump, muff, muffer, rube, slob, stumblebum, stumblebunny
ROGET THESAURUS
butterfingers
Bungler
N
bungler, blunderer, blunderhead, marplot, fumbler, lubber, duffer, dauber, stick, bad hand, poor hand, poor shot,
butterfingers, no conjurer, flat, muff, slow coach, looby, lubber, swab, clod, yokel, awkward squad, blanc-bec, galoot, land lubber, fresh water sailor, fair weather sailor, horse marine, fish out of water, ass in lion's skin, jackdaw in peacock's feathers, quack, lord of misrule, sloven, slattern, trapes, amateur, novice, greenhorn (learner), il n'a pas invente' la poudre, he will never set the Thames on fire, acierta errando, aliquis in omnibus nullus in singulis.