persuadable

from WordNet (r) 3.0 (2006)

persuadable
    adj 1: being susceptible to persuasion [syn: {convincible},
           {persuadable}, {persuasible}, {suasible}]

from The Collaborative International Dictionary of English v.0.48

Persuadable \Per*suad"a*ble\, a.
   That may be persuaded. -- {Per*suad"a*ble*ness}, n. --
   {Per*suad"a*bly}, adv.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

40 Moby Thesaurus words for "persuadable":
      accessible, admissive, amenable, cullible, deceivable, deludable,
      dupable, easy, exploitable, foolable, green, gullible, hoaxable,
      hoodwinkable, humbugable, impressionable, influenceable, ingenuous,
      malleable, movable, naive, open, open-minded, persuasible,
      pervious, plastic, pliable, pliant, receptive, responsive,
      seduceable, simple, soft, suasible, suggestible, susceptible,
      swayable, unsophisticated, victimizable, weak