Sulkiness

from WordNet (r) 3.0 (2006)

sulkiness
    n 1: a mood or display of sullen aloofness or withdrawal;
         "stayed home in a sulk" [syn: {sulk}, {sulkiness}]
    2: a feeling of sulky resentment [syn: {sulkiness},
       {huffishness}]
    3: a sullen moody resentful disposition [syn: {sulkiness},
       {sullenness}, {moroseness}, {sourness}]

from The Collaborative International Dictionary of English v.0.48

Sulkiness \Sulk"i*ness\, n. [For sulkenness, fr. AS. solcen
   slothful, remiss, in [=a]solcen, besolcen, properly p. p. of
   sealcan in [=a]sealcan to be weak or slothful; of uncertain
   origin.]
   The quality or state of being sulky; sullenness; moroseness;
   as, sulkiness of disposition.
   [1913 Webster]

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