operable

from WordNet (r) 3.0 (2006)

operable
    adj 1: capable of being treated by surgical operation; "an
           operable cancer" [ant: {inoperable}]
    2: fit or ready for use or service; "the toaster was still
       functional even after being dropped"; "the lawnmower is a bit
       rusty but still usable"; "an operational aircraft"; "the
       dishwasher is now in working order" [syn: {functional},
       {usable}, {useable}, {operable}, {operational}]
    3: usable for a specific purpose; "an operable plan"; "a
       practicable solution" [syn: {operable}, {practicable}]

from The Collaborative International Dictionary of English v.0.48

Operable \Op"er*a*ble\, a.
   Practicable. [Obs.]
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

39 Moby Thesaurus words for "operable":
      achievable, actable, appliable, applicable, attainable, banausic,
      compassable, compliant, doable, effective, effectual, efficient,
      exploitable, feasible, fit, functional, in working order,
      manageable, maneuverable, manipulable, manipulatable, negotiable,
      operatable, operational, overcomable, performable, pliable,
      practicable, practical, pragmatic, realizable, reusable,
      serviceable, superable, surmountable, usable, utilizable, viable,
      workable