The Collaborative International Dictionary of English v.0.48:

Engulf \En*gulf"\, v. t. [imp. & p. p. Engulfed; p. pr. & vb.
   n. Engulfing.] [Pref. en- + gulf: cf. OF. engolfer. Cf.
   Ingulf.]
   To absorb or swallow up as in a gulf.
   [1913 Webster]

         It quite engulfs all human thought.      --Young.

   Syn: See Absorb.
        [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "engulfed":
   afloat, at flood, awash, bathed, buried, deluged, dipped, drenched,
   dribbling, dripping, dripping wet, drowned, flooded, immersed,
   in spate, inflood, inundated, macerated, oozing, overflowed,
   overwhelmed, permeated, saturated, seeping, soaked, soaking,
   soaking wet, soaky, sodden, soggy, sopping, sopping wet, soppy,
   soused, steeped, subaqueous, submarine, submerged, submersed,
   sunken, swamped, swept, undersea, underwater, washed, water-washed,
   waterlogged, watersoaked, weeping, weltering, whelmed,
   wringing wet