'Spareness' definitions:

Definition of 'spareness'

(from WordNet)
noun
The property of being scanty or scattered; lacking denseness [syn: sparseness, spareness, sparsity, thinness]
noun
The property of having little body fat [syn: leanness, thinness, spareness] [ant: avoirdupois, blubber, fat, fatness]

Definition of 'Spareness'

From: GCIDE
  • Spareness \Spare"ness\, n. [Cf. AS. spaernis frugality.] The quality or state of being lean or thin; leanness. [1913 Webster]