Dictionary.com

inert

[ in-urt, ih-nurt ]
/ ɪnˈɜrt, ɪˈnɜrt /
Save This Word!
See synonyms for: inert / inertness on Thesaurus.com

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.
QUIZ
SPRINT TO THE FINISH WITH THIS OLYMPICS QUIZ!
Compete in our Olympics quiz to see if you can take home the gold medal in Olympics knowledge.
Question 1 of 10
Where was the Olympics first held?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of inert

First recorded in 1640–50; from Latin inert- (stem of iners ) “unskillful,” equivalent to in- in-3 + -ert-, combining form of art- (stem of ars ) “skill”; see art1

synonym study for inert

4. See inactive.

OTHER WORDS FROM inert

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use inert in a sentence

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 of inert

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

Medical 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.

Scientific 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.
FEEDBACK