un poised


(of a person) composed, dignified, and self-assured.
being in balance or equilibrium: a balloon poised on the nose of a seal.
teetering or wavering: to be poised on the brink of disaster.
hovering or suspended in or as in midair: a bird poised in flight; a helicopter poised overhead.

1635–45; poise1 + -ed2, -ed3

unpoised, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
poised (pɔɪzd)
1.  self-possessed; dignified; exhibiting composure
2.  balanced and prepared for action: a skier poised at the top of the slope

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

early 15c., "weight, quality of being heavy," later "significance, importance" (mid-15c.), from O.Fr. pois "weight, balance, consideration," from M.L. pesum "weight," from L. pensum, noun use of neuter pp. of pendere "to weigh" (see pendant). The sense of "steadiness, composure"
first recorded 1640s, from notion of being equally weighted on either side (1550s). The verb is first recorded late 14c., "to have a certain weight," from O.Fr. peser, from V.L. pesare, from L. pensare "to weigh carefully," freq. of pendere (pp. pensus) "to weigh." Passive sense of "to be ready" (to do something) is from 1932.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

poise (poiz, pwäz)
A centimeter-gram-second unit of dynamic viscosity equal to one dyne-second per square centimeter.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
poise   (poiz, pwäz)  Pronunciation Key 
The unit of dynamic viscosity in the centimeter-gram-second system, equal to one dyne-second per square centimeter, or 0.1 pascal-seconds.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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