The DICT Development Group

  Immoderate \Im*mod"er*ate\, a. [L. immoderatus; pref. im- not +
     moderatus moderate. See Moderate.]
     Not moderate; exceeding just or usual and suitable bounds;
     excessive; extravagant; unreasonable; as, immoderate demands;
     immoderate grief; immoderate laughter.
     [1913 Webster]
  
           So every scope by the immoderate use
           Turns to restraint.                      --Shak.
  
     Syn: Excessive; exorbitant; unreasonable; extravagant;
          intemperate; inordinate.
          [1913 Webster]

  immoderate
      adj 1: beyond reasonable limits; "immoderate laughter";
             "immoderate spending" [ant: moderate]

  121 Moby Thesaurus words for "immoderate":
     a bit much, abandoned, acute, bibulous, boundless, crapulent,
     crapulous, cutthroat, cutting, dizzy, drastic, egregious, enormous,
     exacting, exaggerated, excessive, exorbitant, extortionate,
     extravagant, extreme, fabulous, fancy, fierce, furious, gigantic,
     gluttonous, go-go, gouging, great, grossly overpriced, high,
     hyperbolic, hypertrophied, incontinent, indulgent, inflationary,
     inordinate, intemperate, intense, irrepressible, keen, lax,
     licentious, loose, monstrous, nonrestrictive, out of bounds,
     out of control, out of hand, out of sight, outrageous, overbig,
     overdeveloped, overgreat, overgrown, overindulgent, overindulging,
     overlarge, overmuch, overpriced, overweening, permissive, piercing,
     preposterous, prodigal, prohibitive, rampant, reinless, rigorous,
     riotous, rough, self-indulgent, severe, sharp, skyrocketing,
     spiraling, splitting, steep, stiff, swinish, too much, tough,
     towering, unbridled, unchecked, uncoerced, uncompelled,
     unconscionable, unconstrained, uncontrolled, uncurbed,
     undisciplined, undue, unforced, unfrugal, ungoverned, uninhibited,
     unlimited, unmastered, unmeasurable, unmeasured, unmuzzled,
     unreasonable, unreined, unrepressed, unreserved, unrestrained,
     unrestrictive, unruly, unsubdued, unsuppressed, untempered,
     unthrifty, unwarranted, usurious, vehement, venomous, violent,
     virulent, wanton, wild