The Collaborative International Dictionary of English v.0.48:

Pockmarked \Pock"marked`\, a.
   Marked by smallpox; pitted.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pockmarked
    adj 1: used of paved surfaces having holes or pits [syn:
           pocked, pockmarked, potholed]
    2: marked by or as if by smallpox or acne or other eruptive skin
       disease [syn: pocked, pockmarked]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "pockmarked":
   alveolar, alveolate, bespangled, blotched, blotchy, dented,
   depressed, dimpled, dotted, dotty, engraved, faveolate,
   flea-bitten, flecked, fleckered, frecked, freckled, freckly,
   honeycombed, indented, macular, maculate, maculated, notched,
   patchy, peppered, pitted, pocked, pocky, pointille, pointillistic,
   polka-dot, punctated, spangled, specked, speckled, speckledy,
   speckly, splotched, splotchy, spotted, spotty, sprinkled, stippled,
   studded