The Collaborative International Dictionary of English v.0.48:

Intemperate \In*tem`per*ate\, v. t.
   To disorder. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Intemperate \In*tem`per*ate\, a. [L. intemperatus. See In-
   not, and Temperate.]
   1. Indulging any appetite or passion to excess; immoderate in
      enjoyment or exertion.
      [1913 Webster]

   2. Specifically, addicted to an excessive or habitual use of
      alcoholic liquors.
      [1913 Webster]

   3. Excessive; ungovernable; inordinate; violent; immoderate;
      as, intemperate language, zeal, etc.; intemperate weather.
      [1913 Webster]

            Most do taste through fond intemperate thirst.
                                                  --Milton.
      [1913 Webster]

            Use not thy mouth to intemperate swearing. --Ecclus.
                                                  xxiii. 13.
      [1913 Webster]

WordNet (r) 3.0 (2006):

intemperate
    adj 1: (of weather or climate) not mild; subject to extremes;
           "an intemperate climate"; "intemperate zones" [ant:
           temperate]
    2: excessive in behavior; "intemperate rage" [ant: temperate]
    3: given to excessive indulgence of bodily appetites especially
       for intoxicating liquors; "a hard drinker" [syn:
       intemperate, hard, heavy]