Source : Webster's Revised Unabridged Dictionary (1913)

Clumsy \Clum"sy\, a. [Compar. {Clumsier}; superl. {Clumsiest}.]
   [OE. clumsed benumbed, fr. clumsen to be benumbed; cf. Icel.
   klumsa lockjaw, dial. Sw. klummsen benumbed with cold. Cf.
   1st {Clam}, and 1st {Clamp}.]
   1. Stiff or benumbed, as with cold. [Obs.]

   2. Without skill or grace; wanting dexterity, nimbleness, or
      readiness; stiff; awkward, as if benumbed; unwieldy;
      unhandy; hence; ill-made, misshapen, or inappropriate; as,
      a clumsy person; a clumsy workman; clumsy fingers; a
      clumsy gesture; a clumsy excuse.

            But thou in clumsy verse, unlicked, unpointed, Hast
            shamefully defied the Lord's anointed. --Dryden.

   Syn: See {Awkward}.

Source : WordNet®

clumsiest
     See {clumsy}

clumsy
     adj 1: 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}, {clunky}, {ungainly},
             {unwieldy}]
     2: not elegant or graceful in expression; "an awkward prose
        style"; "a clumsy apology"; "his cumbersome writing
        style"; "if the rumor is true, can anything be more inept
        than to repeat it now?" [syn: {awkward}, {cumbersome}, {inapt},
         {inept}, {ill-chosen}]
     3: difficult to handle or manage especially because of shape;
        "an awkward bundle to carry"; "a load of bunglesome
        paraphernalia"; "clumsy wooden shoes"; "the cello, a
        rather ungainly instrument for a girl" [syn: {awkward}, {bunglesome},
         {ungainly}]
     4: showing lack of skill or aptitude; "a bungling workman";
        "did a clumsy job"; "his fumbling attempt to put up a
        shelf" [syn: {bungling}, {fumbling}, {incompetent}]
     [also: {clumsiest}, {clumsier}]