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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.
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Origin of inert

1640–50; < Latin inert- (stem of iners) unskillful, equivalent to in- in-3 + -ert-, combining form of art- (stem of ars) skill; see art1
Related formsin·ert·ly, adverbin·ert·ness, nounnon·in·ert, adjectivenon·in·ert·ly, adverbnon·in·ert·ness, nounun·in·ert, adjectiveun·in·ert·ly, adverb

Synonyms for inert

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for non-inert

inert

adjective
  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
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Derived Formsinertly, adverbinertness, noun

Word Origin for inert

C17: from Latin iners unskilled, from in- 1 + ars skill; see art 1
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

Word Origin and History for non-inert

inert

adj.

1640s, from French inerte (16c.) or directly from Latin inertem (nominative iners) "unskilled, inactive, helpless, sluggish, worthless," from in- "without" + ars (genitive artis) "skill" (see art (n.)). Originally of matter; specifically of gases from 1885. Of persons or creatures, from 1774.

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Online Etymology Dictionary, © 2010 Douglas Harper

non-inert in Medicine

inert

(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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

non-inert in Science

inert

[ĭn-ûrt]
  1. Not chemically reactive.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.