Source : Webster's Revised Unabridged Dictionary (1913)

Feasible \Fea"si*ble\a. [F. faisable, fr. faire to make or do,
   fr. L. facere. See {Fact}, {Feat}.]
   1. Capable of being done, executed, or effected; practicable.

            Always existing before their eyes as a thing
            feasible in practice.                 --Burke.

            It was not feasible to gratify so many ambitions.
                                                  --Beaconsfield.

   2. Fit to be used or tailed, as land. [R.] --R. Trumbull.
      {Fea"si*ble*ness}, n. --{Fea"si*bly}, adv.

Source : WordNet®

feasible
     adj : capable of being done with means at hand and circumstances
           as they are [syn: {executable}, {practicable}, {viable},
            {workable}]

feasible
     adv : in a practicable manner; so as to be feasible [syn: {practicably}]

Source : Free On-Line Dictionary of Computing

feasible
     
         A description of an {algorithm} that takes
        {polynomial} time (that is, for a problem set of size N, the
        resources required to solve the problem can be expressed as
        some polynomial involving N).
     
        Problems that are "feasible" are said to be "in P" where P is
        polynomial time.  Problems that are "possible" but not
        "feasible" are said to be "in NP".
     
        (2001-04-12)