inert

[in-urt, ih-nurt]
adjective
1.
having no inherent power of action, motion, or resistance (opposed to active ): inert matter.
2.
Chemistry. having little or no ability to react, as nitrogen that occurs uncombined in the atmosphere.
3.
Pharmacology. having no pharmacological action, as the excipient of a pill.
4.
inactive or sluggish by habit or nature.

Origin:
1640–50; < Latin inert- (stem of iners) unskillful, equivalent to in- in-3 + -ert-, combining form of art- (stem of ars) skill; see art1

inertly, adverb
inertness, noun
noninert, adjective
noninertly, adverb
noninertness, noun
uninert, adjective
uninertly, adverb


1. immobile, unmoving, lifeless, motionless. 4. See inactive.
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World English Dictionary
inert (ɪnˈɜːt)
 
adj
1.  having no inherent ability to move or to resist motion
2.  inactive, lazy, or sluggish
3.  having only a limited ability to react chemically; unreactive
 
[C17: from Latin iners unskilled, from in-1 + ars skill; see art1]
 
in'ertly
 
adv
 
in'ertness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

inert
1647, from Fr. inerte (16c.), from L. inertem (nom. iners) "unskilled, inactive," from in- "without" + ars (gen. artis) "skill" (see art (n.)).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

inert in·ert (ĭn-ûrt')
adj.

  1. Sluggish in action or motion; lethargic.

  2. Not readily reactive with other chemical elements; forming few or no chemical compounds.

  3. Having no pharmacologic or therapeutic action.

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
inert   (ĭn-ûrt')  Pronunciation Key 
Not chemically reactive.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Revelation lifted its head but otherwise remained as inert as a lump of clay.
The atmosphere in the box is dry nitrogen, which is relatively inert.
He evinces a blind spot for painting, with inert geometric canvases, but never
  a failure of nerve.
Sasha never took anything from stores-their cold, inert goods didn't tempt her.
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