[ ak-uh-thizh-uh, -thiz-ee-uh ]
/ ˌæk əˈθɪʒ ə, -ˈθɪz i ə /


a state of motor restlessness, sometimes produced by neuroleptic medication, that ranges from a feeling of inner distress to an inability to sit still.

Nearby words

Origin of akathisia

1900–05; < Czech akathisie < Greek a- a-6 + káthis(is) “sitting” (noun derivative of kathízein “to seat, make sit, take one's seat”; kat- cat- + hízein “to seat,” akin to sit1) + New Latin -ia -ia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for akathisia


/ (ˌækəˈθiːzɪə) /


the inability to sit still because of uncontrollable movement caused by reaction to drugs

Word Origin for akathisia

C20: from a- + -kithisia, ultimately from Greek cathedra seat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for akathisia



Motor restlessness characterized by muscular quivering and the inability to sit still, often a result of chronic ingestion of neuroleptic drugs.
Intense anxiety at the thought of sitting down; inability to sit down.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.