sparsest

from The Collaborative International Dictionary of English v.0.48
Sparse \Sparse\, a. [Compar. {Sparser}; superl. {Sparsest}.] [L.
   sparsus, p. p. of spargere to strew, scatter. Cf. {Asperse},
   {Disperse}.]
   1. Thinly scattered; set or planted here and there; not being
      dense or close together; as, a sparse population.
      --Carlyle.
      [1913 Webster]

   2. (Bot.) Placed irregularly and distantly; scattered; --
      applied to branches, leaves, peduncles, and the like.
      [1913 Webster]
    

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