The Collaborative International Dictionary of English v.0.48:

Drunkenness \Drunk"en*ness\, n.
   1. The state of being drunken with, or as with, alcoholic
      liquor; intoxication; inebriety; -- used of the casual
      state or the habit.
      [1913 Webster]

            The Lacedemonians trained up their children to hate
            drunkenness by bringing a drunken man into their
            company.                              --I. Watts.
      [1913 Webster]

   2. Disorder of the faculties, resembling intoxication by
      liquors; inflammation; frenzy; rage.
      [1913 Webster]

            Passion is the drunkenness of the mind. -- South.

   Syn: Intoxication; inebriation; inebriety. -- Drunkenness,
        Intoxication, Inebriation. Drunkenness refers more
        to the habit; intoxication and inebriation, to specific
        acts. The first two words are extensively used in a
        figurative sense; a person is intoxicated with success,
        and is drunk with joy. "This plan of empire was not
        taken up in the first intoxication of unexpected
        success." --Burke. Drunkenship

WordNet (r) 3.0 (2006):

drunkenness
    n 1: a temporary state resulting from excessive consumption of
         alcohol [syn: drunkenness, inebriation, inebriety,
         intoxication, tipsiness, insobriety] [ant:
         soberness, sobriety]
    2: 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]
    3: the act of drinking alcoholic beverages to excess; "drink was
       his downfall" [syn: drink, drinking, boozing,
       drunkenness, crapulence]