Definition of inertnext

Synonym Chooser

How is the word inert different from other adjectives like it?

Some common synonyms of inert are idle, inactive, passive, and supine. While all these words mean "not engaged in work or activity," inert as applied to things implies powerlessness to move or to affect other things; as applied to persons it suggests an inherent or habitual indisposition to activity.

inert ingredients in drugs
an inert citizenry

When would idle be a good substitute for inert?

The words idle and inert can be used in similar contexts, but idle applies to persons that are not busy or occupied or to their powers or their implements.

workers were idle in the fields

In what contexts can inactive take the place of inert?

While in some cases nearly identical to inert, inactive applies to anyone or anything not in action or in operation or at work.

on inactive status as an astronaut
inactive accounts

When can passive be used instead of inert?

The words passive and inert are synonyms, but do differ in nuance. Specifically, passive implies immobility or lack of normally expected response to an external force or influence and often suggests deliberate submissiveness or self-control.

passive resistance

When could supine be used to replace inert?

While the synonyms supine and inert are close in meaning, supine applies only to persons and commonly implies abjectness or indolence.

a supine willingness to play the fool

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of inert These are inert and do not react with the wine. Kait Hanson, Southern Living, 25 June 2026 On a chunk of gold, this is not an issue because there are plenty of atoms to go around, so each surface ends up almost completely inert. Chris Lee, ArsTechnica, 9 June 2026 At other times, the music meditates on an image — there’s a tribute to Sylvia Plath, another famous McLean patient — that’s beautiful on its own but dramatically inert. Jackson McHenry, Vulture, 5 June 2026 For a while, Claude kept spitting out the same inert passages, in which Jay Gatsby or Sherlock Holmes did a whole lot of nothing and had no opinion about the very little that was happening around them. Jay Caspian Kang, New Yorker, 2 June 2026 See All Example Sentences for inert
Recent Examples of Synonyms for inert
Adjective
  • Some of the renovations have been successful; fountains are running anew, including the long-dormant cascading water feature at the city’s popular Meridian Hill Park.
    Justine McDaniel, Los Angeles Times, 2 July 2026
  • Our bedroom is obviously dormant and dead, but that’s ok too.
    Sean Joseph OutKick, FOXNews.com, 2 July 2026
Adjective
  • Unlike much of the group stage, Sunday’s game was a sloppy, sleepy affair, with South Africa relying on some heroic play from its back line to keep the game even.
    Los Angeles Times, Los Angeles Times, 28 June 2026
  • The phone achieved download speeds of 463Mbps and upload speeds of 39Mbps in 5G testing in sleepy suburban areas.
    Florence Ion, PC Magazine, 27 June 2026
Adjective
  • For a team that began the season with off days coming at a premium, a brief stretch with two open dates is a respite from the wear and tear of a long season.
    Chad Bishop, AJC.com, 25 June 2026
  • His shot diet is already optimized for the league, his frame holds up in physical matchups and his off-ball activity gives coaches a willing piece to weave into screen and handoff actions.
    Anthony Chiang, Miami Herald, 25 June 2026
Adjective
  • Besides toning color, this shampoo acts as a gentle clarifier, removing product buildup from the roots and hair that can make your hair appear dull and greasy.
    Reece Andavolgyi, InStyle, 25 June 2026
  • The practical step is small and dull, which feels about right.
    Dara-Abasi Ita, Forbes.com, 25 June 2026
Adjective
  • Now, owners face rising costs and limited revenue, leading to over 57,000 vacant units.
    Shimon Shkury, Forbes.com, 30 June 2026
  • When Vine Street Brewing opened in a long-vacant building in 2023, redevelopment in the district was still gaining momentum.
    J.M. Banks, Kansas City Star, 30 June 2026
Adjective
  • Uvalde County also reported its first case, bringing the total number of Texas cases to 28, with 22 active and 6 inactive.
    Mateo Rosiles, USA Today, 1 July 2026
  • It is stored in an inactive form in cells such as the liver, spleen, bone marrow, and immune system—acting as the body’s reserve bank, indicating how much iron is available for future use.
    Tatiana Dias, Vogue, 30 June 2026
Adjective
  • Reclaiming idle assets cuts waste, spend and unnecessary procurement at the same time.
    Expert Panel®, Forbes.com, 30 June 2026
  • No, not the usual idle front-row niceties, but the scorching heat wave that has settled like a dense cloud over the City of Lights.
    Max Berlinger, Vogue, 24 June 2026
Adjective
  • For galaxies with a quiescent supermassive black hole, astronomers measure how quickly the stars tightly packed near the center of the galaxy are traveling.
    Mary Ogborn, The Conversation, 25 June 2026
  • As oil prices drop with the Iran war quiescent, US consumers might hope price rises could level off.
    Tom Chivers, semafor.com, 25 June 2026

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Cite this Entry

“Inert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inert. Accessed 3 Jul. 2026.

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