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a disturbance in rhythm, as in the heartbeat
Not to be confused with:
eurhythmic – characterized by a pleasing rhythm; harmoniously proportioned
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree


Lacking rhythm or regularity of rhythm: "a slight arrhythmic imperfection when the car idles" (Garrison Keillor).

ar·rhyth′mi·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.






having irregular rhythm
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.arrhythmic - lacking a steady rhythm; "an arrhythmic heartbeat"
unsteady - subject to change or variation; "her unsteady walk"; "his hand was unsteady as he poured the wine"; "an unsteady voice"
2.arrhythmic - without regard for rhythm
unrhythmic, unrhythmical - not rhythmic; irregular in beat or accent
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
As rumor disrupts known facts, this personality disjunction is compounded by the narrative's quoted reminiscences interspersed seemingly randomly and arrhythmically. These interrupt the daily scenes relayed by David Boyd.
Based on these buzzing, flyspecked, fluorescent poems, I'd guess that Robbins' heart is not lovely but beating a bit arrhythmically; not dark but lighted by a dangling disco ball; not deep but as shallow and alert as a tidal buoy facing down a tsunami.
Physiological ecologist Hank Harlow of the University of Wyoming in Laramie said that he too has listened to hibernating bear hearts going still for a stretch and then kerthumping arrhythmically. Maybe it saves energy, he said.

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