WordNet (r) 3.0 (2006):

well-disposed
    adj 1: inclined to help or support; not antagonistic or hostile;
           "a government friendly to our interests"; "an amicable
           agreement" [syn: friendly, favorable, well-
           disposed]

Moby Thesaurus II by Grady Ward, 1.0:

74 Moby Thesaurus words for "well-disposed":
   acquiescent, advocating, agreeable, alacritous, amenable, amiable,
   amicable, approving, ardent, backing, beneficent, benevolent,
   benign, benignant, brotherly, compliant, congenial, consenting,
   content, cooperative, disposed, docile, eager, enthusiastic, fain,
   favorable, favorably disposed, favorably inclined, favoring,
   forward, fraternal, friendlike, friendly, game, harmonious,
   in the mind, in the mood, inclined, kind, kindly, kindly-disposed,
   minded, neighborlike, neighborly, peaceable, pleasant, pliant,
   predisposed, pro, prompt, prone, propitious, quick, ready,
   ready and willing, receptive, responsive, sib, simpatico, sisterly,
   sociable, supporting, sympathique, tractable, unhostile,
   well-affected, well-inclined, well-intentioned, well-meaning,
   well-meant, willed, willing, willinghearted, zealous