Source : Webster's Revised Unabridged Dictionary (1913)

Wieldy \Wield"y\, a.
   Capable of being wielded; manageable; wieldable; -- opposed
   to unwieldy. [R.] --Johnson.

Source : WordNet®

wieldy
     adj : easy to handle or use or manage; "a large but wieldy book"
           [syn: {manageable}] [ant: {unwieldy}]
     [also: {wieldiest}, {wieldier}]