atony

from WordNet (r) 3.0 (2006)

atony
    n 1: lack of normal muscular tension or tonus [syn: {atonicity},
         {atony}, {atonia}, {amyotonia}] [ant: {tone}, {tonicity},
         {tonus}]

from The Collaborative International Dictionary of English v.0.48

Atony \At"o*ny\, n. [Gr. ? slackness; 'a priv. + ? tone,
   strength, ? to stretch: cf. F. atonie.] (Med.)
   Want of tone; weakness of the system, or of any organ,
   especially of such as are contractile.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

28 Moby Thesaurus words for "atony":
      adynamia, anemia, blah feeling, bloodlessness, cachexia, cachexy,
      cowardice, debilitation, debility, dullness, etiolation, faintness,
      fatigue, feebleness, flabbiness, flaccidity, impotence,
      languishment, languor, lassitude, listlessness, prostration,
      sluggishness, softness, strengthlessness, weakliness, weakness,
      weariness

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