IMPOSSIBLE Synonyms: 70 Similar and Opposite Words

impossible

adjective

(ˌ)im-ˈpä-sə-bəl

Definition of impossible

as in unlikely

incapable of being solved or accomplished the seemingly impossible problem of world hunger fitting everything in my backpack seemed an impossible task

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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 impossible Fewer classes in earlier years made a 58-0 mark impossible before then. — Todd Holcomb, AJC.com, 24 Oct. 2026 That said, along with its use by astronauts, the technology is also aimed at people such as those with Parkinson’s disease, whose hand tremors currently make traditional eyedrop application nearly impossible. — Ben Coxworth october 23, New Atlas, 23 Oct. 2026 One included a story about someone charged for damage to a rental car that was impossible to disprove. — Cooper Katz McKim, NPR, 23 Oct. 2026 Doing so might be impossible, given the anonymity of ballots. — Dan Mangan, CNBC, 23 Oct. 2026 See All Example Sentences for impossible

Recent Examples of Synonyms for impossible

Adjective

Friedman began her remarks by reminding the audience of von Furstenberg’s unlikely beginning, born in Brussels to a Holocaust survivor.

— Ariel Bielsky, Vogue, 24 Oct. 2026
Dahlia Scheindlin, a veteran pollster who works for left-of-center candidates and parties in Israel, speculated that the number of returning overseas voters was unlikely to be big enough to change the outcome of the election.

— Daniel Brook, New Yorker, 24 Oct. 2026

Definition of unlikely

Adjective

On Monday, a day after the Colts lost to the winless and hopeless Tennessee Titans at home, Indianapolis announced that Ballard has been relieved of his duties as team general manager.

— Mark Harris OutKick, FOXNews.com, 19 Oct. 2026
Colonel Brandon Herbert Nordrum Nordrum plays Colonel Brandon as a sad, hopeless yet smoldering sleeper suitor who can’t take his eyes off of Marianne.

— Reshma Gopaldas, IndieWire, 19 Oct. 2026

Definition of hopeless

Adjective

Also, many families of rare disease patients spend years creating databases, known as natural history studies, so they can be used as control groups in trials instead of giving patients a placebo, which is often impractical and unethical.

— Gerry Smith, CNBC, 22 Oct. 2026
Texas law requires elementary schools to provide at least 30 minutes a day of moderate to vigorous physical activity, which can be cut to 27 minutes per day if scheduling makes the full amount impractical.

— Lina Ruiz, Fort Worth Star-Telegram, 22 Oct. 2026

Definition of impractical

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impossible

impossibly

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“Impossible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impossible. Accessed 27 Oct. 2026.

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Synonyms of impossible

adjective

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