inert

[ in-urt, ih-nurt ]
/ ɪnˈɜrt, ɪˈnɜrt /

adjective

having no inherent power of action, motion, or resistance (opposed to active): inert matter.
Chemistry. having little or no ability to react, as nitrogen that occurs uncombined in the atmosphere.
Pharmacology. having no pharmacological action, as the excipient of a pill.
inactive or sluggish by habit or nature.

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 forms

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inert

British Dictionary definitions for inert

inert

/ (ɪnˈɜːt) /

adjective

having no inherent ability to move or to resist motion
inactive, lazy, or sluggish
having only a limited ability to react chemically; unreactive

Derived Forms

inertly, 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

Medicine definitions for inert

inert

[ ĭn-ûrt ]

adj.

Sluggish in action or motion; lethargic.
Not readily reactive with other chemical elements; forming few or no chemical compounds.
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.

Science definitions for inert

inert

[ ĭn-ûrt ]

Not chemically reactive.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.