What is another word for "duffer"?

Roget's Thesaurus (1911) lists these synonyms for "duffer": amateur, ass, awkward, bad, blunderer, blunderhead, bungler, clod, coach, conjurer, dauber, deceiver, fair, fire, fish, flat, fresh, fumbler, galoot, greenhorn, hand, horse, jackdaw, land, learner, looby, lord, lubber, marine, marplot, misrule, muff, never, novice, omnibus, out, pas, poor, poudre, quack.