[1] : The Collaborative International Dictionary of English v.0.48

unwieldy \unwield"y\, a.
   not easily wielded or carried; unmanageable; bulky;
   ponderous. "a fat, unwieldy body of fifty-eight years old."
   --clarendon.
   1913 webster -- unwield"ily, adv. -- unwield"iness,
   n.
   1913 webster
see also:
unwield"ily unwield"iness 

[2] : WordNet (r) 2.0

unwieldy
     adj 1: difficult to use or handle or manage because of size or
            weight or shape; "we set about towing the unwieldy
            structure into the shelter"; "almost dropped the
            unwieldy parcel" syn: unmanageable ant: wieldy
     2: lacking grace in movement or posture; "a gawky lad with long
        ungainly legs"; "clumsy fingers"; "what an ungainly
        creature a giraffe is"; "heaved his unwieldy figure out of
        his chair" syn: gawky, clumsy, clunky, ungainly
see also:
unmanageable wieldy gawky clumsy clunky ungainly 

[3] : Moby Thesaurus II by Grady Ward, 1.0

78 moby thesaurus words for "unwieldy":
   latinate, all thumbs, awkward, blunderheaded, blundering,
   bombastic, boorish, bulky, bumbling, bungling, burdensome,
   butterfingered, careless, clownish, clumsy, clumsy-fisted,
   contrary, cramped, crosswise, cumbersome, cumbrous, discommodious,
   elephantine, encumbering, fingers all thumbs, forced, formal,
   fumbling, gauche, gawkish, gawky, graceless, guinde, halting,
   ham-fisted, ham-handed, heavy, heavy-handed, hulking, hulky,
   impractical, incommodious, inconvenient, incumbent, inelegant,
   inkhorn, labored, leaden, left-hand, left-handed, loutish,
   lubberly, lumbering, lumpish, lumpy, maladroit, massive, massy,
   oafish, onerous, oppressive, oversized, perverse, pompous,
   ponderous, sesquipedalian, sloppy, stiff, stilted, superincumbent,
   troublesome, turgid, uncontrollable, uncouth, ungainly, ungraceful,
   unhandy, unmanageable

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