Source : Webster's Revised Unabridged Dictionary (1913)

Inundate \In*un"date\, v. t. [imp. & p. p. {Inundated}; p. pr. &
   vb. n. {Inundating}.] [L. inundatus, p. p. of inundare to
   inundate; pref. in- in + undare to rise in waves, to
   overflow, fr. unda a wave. See {Undulate}.]
   1. To cover with a flood; to overflow; to deluge; to flood;
      as, the river inundated the town.

   2. To fill with an overflowing abundance or superfluity; as,
      the country was inundated with bills of credit.

   Syn: To overflow; deluge; flood; overwhelm; submerge; drown.

Source : WordNet®

inundate
     v 1: fill quickly beyond capacity; as with a liquid; "the
          basement was inundated after the storm"; "The images
          flooded his mind" [syn: {deluge}, {flood}, {swamp}]
     2: fill or cover completely, usually with water [syn: {deluge},
         {submerge}]