Source : Webster's Revised Unabridged Dictionary (1913)

Landlocked \Land"locked`\, a.
   1. Inclosed, or nearly inclosed, by land.

   2. (Zo["o]l.) Confined to a fresh-water lake by reason of
      waterfalls or dams; -- said of fishes that would naturally
      seek the sea, after spawning; as, the landlocked salmon.

Source : WordNet®

landlocked
     adj : surrounded entirely or almost entirely by land; "a
           landlocked country"