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 The end product is almost chemically inert and the radioactive material is dispersed throughout the glass, reducing the amount of radiation emitted. David Szondy, New Atlas, 28 Dec. 2024 After the mission, the second stage will be made inert and remain in space as orbital debris. Richard Tribou Orlando Sentinel (tns), arkansasonline.com, 13 Jan. 2025 Once the skip at the reception area is full, the waste is emptied into the landfill, where it is then covered with inert material to minimise the release of gases or liquids and then compacted. Ars Technica, 10 Jan. 2025 Originally supposed to fly Sierra Space Dream Chaser test flight, but payload switched to an inert mass simulator because of potential Dream Chaser delays beyond October launch date. Richard Tribou, Orlando Sentinel, 10 Jan. 2025 See all Example Sentences for inert 
Recent Examples of Synonyms for inert
Adjective
  • Wait for the fig plant to go dormant before moving it indoors.
    Kim Toscano, Southern Living, 12 Feb. 2025
  • Listen to this article During his dormant rookie season, Jalen Pickett occasionally played one-on-one against Jamal Murray.
    Bennett Durando, The Denver Post, 11 Feb. 2025
Adjective
  • Unlike other beach towns in Texas, Matagorda Bay is sleepy.
    Amanda Ogle, Travel + Leisure, 8 Feb. 2025
  • Penrod, 85, spent much of his life transforming Miami Beach through his ownership of bars and restaurants, helping change the city from a once sleepy retirement community into a resort destination.
    Devoun Cetoute, Miami Herald, 7 Feb. 2025
Adjective
  • The companies are also planning another event in December for athletes in leagues that are in their off seasons at the time, like the WNBA, NWSL, and MLB.
    Alex Weprin, The Hollywood Reporter, 6 Feb. 2025
  • There will likely come a time in the postseason when one of TCU’s big three is having an off night and Emma-Nnopu could be the player that can step up in that moment.
    Steven Johnson, Fort Worth Star-Telegram, 30 Jan. 2025
Adjective
  • For a company known for its ingenuity, Disney seemed to phone it in this year by spending their precious millions on a dull ad that imagines a universe without their iconic IP.
    Rob LeDonne, Rolling Stone, 10 Feb. 2025
  • The female is dull yellow-green without any markings.
    Stan Tekiela, Twin Cities, 6 Feb. 2025
Adjective
  • The vacant site owned by Wellstar suddenly became a lucrative opportunity for developers looking to cash in on its prime location in the booming Old Fourth Ward neighborhood.
    Kristal Dixon, Axios, 6 Feb. 2025
  • In the event of a vacant partisan seat, the board is required to appoint the candidate recommended by the corresponding party executive committee.
    Nora O’Neill, Charlotte Observer, 6 Feb. 2025
Adjective
  • Zoom in: The Suns weren't completely inactive at the trade deadline, sending center Jusuf Nurkic to the Charlotte Hornets for forward Cody Martin, guard Vasilije Micic and a 2026 second-round draft pick.
    Jeremy Duda, Axios, 6 Feb. 2025
  • However, because the commercial milk supply undergoes pasteurization, the fragments are inactive remnants of the virus and cannot cause infection.
    Mary Kekatos, ABC News, 6 Feb. 2025
Adjective
  • Entertainment gossip and news from Newsweek's network of contributors Hoda Kotb left her longtime role on Today in part to spend more time with her two daughters, but that doesn't mean the 60-year-old anchor will be sitting idle.
    Thomas G. Moukawsher, Newsweek, 6 Feb. 2025
  • Driving your car normally and avoiding hard acceleration will warm up the engine faster than leaving it idle for several minutes, according to AAA.
    Jalen Williams, USA TODAY, 28 Jan. 2025
Adjective
  • This large, circulating cloud of material, including hot gases enriched in oxygen, was found to be absent from quiescent galaxies that had ceased star formation.
    Robert Lea, Space.com, 8 Jan. 2025
  • There is no guarantee that the crisis will remain quiescent for much longer.
    Richard Nephew, Foreign Affairs, 2 Jan. 2025

Thesaurus Entries Near inert

Cite this Entry

“Inert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inert. Accessed 21 Feb. 2025.

More from Merriam-Webster on inert

Last Updated: - Updated example sentences
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