Source : Webster's Revised Unabridged Dictionary (1913)

Immoderation \Im*mod`er*a"tion\, n. [L. immoderatio: cf. F.
   imod['e]ration.]
   Want of moderation. --Hallywell.

Source : WordNet®

immoderation
     n : the quality of being excessive and lacking in moderation
         [syn: {immoderateness}] [ant: {moderation}]