from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Inability to stand because of motor incoordination.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Inability to stand without assistance.

from The Century Dictionary and Cyclopedia

  • n. A genus of eustomatous flagellate infusorians, typical of the family Astasiidæ, having a distinct tubular pharynx. It contains such species as A. trichophora, found in marsh-water.
  • n. [lowercase] Inability to stand in consequence of defective muscular action, which is not necessarily in coördination or paralysis.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. inability to stand due to muscular incoordination


Greek, unsteadiness, from astatos, unsteady : a-, not; see a-1 + statos, standing; see stā- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • From this same standpoint I have studied another case, a married woman of twenty-nine, with marked neurasthenic and hysterical symptoms (including astasia-abasia, anesthesias, palpitation of the heart, throbbing sensations in the stomach and a great many other symptoms).

    The Journal of Abnormal Psychology


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