The Collaborative International Dictionary of English v.0.48:

Inebriation \In*e`bri*a"tion\, n. [L. inebriatio.]
   The condition of being inebriated; intoxication;
   figuratively, deprivation of sense and judgment by anything
   that exhilarates, as success. --Sir T. Browne.
   [1913 Webster]

         Preserve him from the inebriation of prosperity.
                                                  --Macaulay.

   Syn: See Drunkenness.
        [1913 Webster]

WordNet (r) 3.0 (2006):

inebriation
    n 1: habitual intoxication; prolonged and excessive intake of
         alcoholic drinks leading to a breakdown in health and an
         addiction to alcohol such that abrupt deprivation leads to
         severe withdrawal symptoms [syn: alcoholism, alcohol
         addiction, inebriation, drunkenness]
    2: a temporary state resulting from excessive consumption of
       alcohol [syn: drunkenness, inebriation, inebriety,
       intoxication, tipsiness, insobriety] [ant: soberness,
       sobriety]

Moby Thesaurus II by Grady Ward, 1.0:

18 Moby Thesaurus words for "inebriation":
   Dutch courage, a high, befuddlement, besottedness, drunkenness,
   fuddle, fuddledness, fuddlement, hangover, inebriety, insobriety,
   intoxication, katzenjammer, morning after, pot-valiance, pot-valor,
   sottedness, tipsiness