The Collaborative International Dictionary of English v.0.48:

Feasible \Fea"si*ble\ (f[=e]"z[i^]*b'l) a. [F. faisable, fr.
   faire to make or do, fr. L. facere. See Fact, Feat.]
   1. Capable of being done, executed, or effected; practicable.
      [1913 Webster]

            Always existing before their eyes as a thing
            feasible in practice.                 --Burke.
      [1913 Webster]

            It was not feasible to gratify so many ambitions.
                                                  --Beaconsfield.
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   2. Fit to be used or tilled, as land. [R.] --R. Trumbull.
      Fea"si*ble*ness, n. --Fea"si*bly, adv.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

78 Moby Thesaurus words for "feasible":
   achievable, actable, adaptable, advantageous, advisable,
   applicable, appropriate, attainable, banausic, becoming, befitting,
   beneficial, compassable, congruous, convenient, decent, desirable,
   doable, ductile, effective, effectual, efficient, expedient,
   favorable, felicitous, fit, fitten, fitting, flexible, foolproof,
   fructuous, good, handy, happy, likely, malleable, manageable,
   maneuverable, meet, negotiable, operable, opportune, overcomable,
   performable, pliable, pliant, politic, possible, practicable,
   practical, pragmatic, profitable, proper, realistic, realizable,
   recommendable, right, seasonable, seemly, sensible, sortable,
   suitable, superable, surmountable, timely, to be desired,
   tractable, untroublesome, usable, useful, viable, well-timed,
   wieldable, wieldy, wise, workable, worthwhile, yielding