The Collaborative International Dictionary of English v.0.48:

Earthiness \Earth"i*ness\, n.
   The quality or state of being earthy, or of containing earth;
   hence, grossness.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

72 Moby Thesaurus words for "earthiness":
   Adam, Philistinism, animalism, animality, beastliness, bestiality,
   brutality, brutishness, carnal nature, carnal-mindedness,
   carnality, coarseness, crassness, crudeness, crudity,
   down-to-earthness, earthliness, earthly-mindedness, fallen nature,
   fallen state, flesh, fleshliness, frankness, freedom from illusion,
   gaudiness, grossness, hardheadedness, lack of feelings,
   lapsed state, loudness, materialism, matter-of-factness,
   meretriciousness, mundaneness, nonspirituality, obscenity,
   positivism, postlapsarian state, practical-mindedness,
   practicality, practicalness, pragmaticism, pragmatism, raciness,
   rankness, rationality, rawness, realism, reasonableness, ribaldry,
   roughness, rudeness, saltiness, saneness, scientism, secularism,
   sensibleness, sober-mindedness, spiciness, swinishness,
   the Old Adam, the beast, the flesh, the offending Adam,
   uncouthness, unidealism, unromanticalness, unsentimentality,
   unspirituality, vulgarity, worldliness, worldly-mindedness