The Collaborative International Dictionary of English v.0.48:

Incontinence \In*con"ti*nence\, Incontinency \In*con"ti*nen*cy\,
   n. [L. incontinentia: cf. F. incontinence.]
   [1913 Webster]
   1. Incapacity to hold; hence, incapacity to hold back or
      restrain; the quality or state of being incontinent; lack
      of continence; failure to restrain the passions or
      appetites; indulgence of lust; lewdness.
      [1913 Webster]

            That Satan tempt you not for your incontinency. --1
                                                  Cor. vii. 5.
      [1913 Webster]

            From the rash hand of bold incontinence. --Milton.
      [1913 Webster]

   2. (Med.) The inability of any of the animal organs to
      restrain the natural evacuations, especially urination, or
      defecation, so that the discharges are involuntary; as,
      incontinence of urine.
      [1913 Webster]

WordNet (r) 3.0 (2006):

incontinence
    n 1: involuntary urination or defecation [syn: incontinence,
         incontinency]
    2: indiscipline with regard to sensuous pleasures [syn:
       dissoluteness, incontinence, self-gratification]

Moby Thesaurus II by Grady Ward, 1.0:

121 Moby Thesaurus words for "incontinence":
   abandon, abandonment, acquisitiveness, avarice, avariciousness,
   avidity, avidness, boundlessness, carpe diem,
   conspicuous consumption, covetousness, crapulence, crapulency,
   crapulousness, cupidity, dissipation, drunkenness, egregiousness,
   enormousness, exaggeration, excess, excessiveness, exorbitance,
   exorbitancy, extravagance, extravagancy, extreme, extremes,
   extremism, extremity, fabulousness, frenzy of desire,
   fury of desire, giantism, gigantism, gluttony, grasping,
   graspingness, greed, greediness, hoggishness, hyperbole,
   hypertrophy, immoderacy, immoderateness, immoderation,
   indiscipline, indulgence, inordinacy, inordinance,
   inordinate desire, inordinateness, insatiability,
   insatiable desire, intemperance, intemperateness, irrepressibility,
   itching palm, lavishness, laxness, leaking purse, licentiousness,
   loose purse strings, lust, monstrousness, nimiety, noncoercion,
   nonintimidation, outrageousness, overdevelopment, overdoing,
   overgenerosity, overgenerousness, overgreatness, overgreediness,
   overgrowth, overindulgence, overlargeness, overliberality,
   overmuch, overmuchness, permissiveness, piggishness,
   pound-foolishness, prodigality, profligacy, profuseness, profusion,
   radicalism, rapaciousness, rapacity, ravenousness,
   reckless expenditure, reckless spending, riotousness,
   self-indulgence, sordidness, squandering, squandermania,
   swinishness, too much, too-muchness, unconscionableness,
   unconstraint, uncontinence, uncontrol, undueness, uninhibitedness,
   unreasonableness, unreserve, unrestrainedness, unrestraint,
   unruliness, unstrictness, voraciousness, voracity, wantonness,
   waste, wastefulness, wildness, wolfishness