nonporous

from WordNet (r) 3.0 (2006)

nonporous
    adj 1: not porous; especially not having vessels that appear as
           pores; "nonporous wood" [ant: {poriferous}, {porous}]

from The Collaborative International Dictionary of English v.0.48

nonporous \nonporous\ adj.
   Not porous; especially, not having vessels that appear as
   pores; as, nonporous wood. Opposite of {porous}.
   [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

35 Moby Thesaurus words for "nonporous":
      close, close-knit, close-textured, close-woven, compact, compacted,
      compressed, concentrated, concrete, condensed, congested,
      consolidated, crammed, crammed full, crowded, dense, firm, gluey,
      hard, heavy, impenetrable, impermeable, jam-packed, jammed,
      massive, packed, serried, solid, substantial, thick, thick-growing,
      thickset, viscid, viscose, viscous

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