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 Plush toys and squeezy bath toys may be impossible to sanitize, so skip bringing those home. — Brandee Gruener, Southern Living, 1 Aug. 2026 Putting in a massive new underground cable network to connect the capital with other towns and cities was nearly impossible with the technology of the time. — David Szondy august 01, New Atlas, 1 Aug. 2026 Social media and streaming have fractured the traditional advertising model in ways that are impossible to ignore. — Ashlee Difuntorum, Forbes.com, 1 Aug. 2026 The final out proves impossible for the Kansas City Royals once again. — Pete Grathoff, Kansas City Star, 31 July 2026 See All Example Sentences for impossible

Recent Examples of Synonyms for impossible

Adjective

Pulley’s latest balances macro stakes with delightful burgeoning romances and connections between unlikely allies thrown together against the unbelievable.

— Literary Hub, Literary Hub, 3 Aug. 2026
Kavanaugh may seem an unlikely ally in the fight for greater equality.

— Charles Grantham, Sportico.com, 3 Aug. 2026

Definition of unlikely

Adjective

Yet their portrait of the artist as a hopeless snot-nosed punk doesn’t seem interested in knowing who this guy was past being another dude in search of a purpose.

— David Fear, Rolling Stone, 5 Aug. 2026
Echoing her sentiments, Shaharier remembered feeling hopeless when his baby boy was born so early.

— Kayla Grant, PEOPLE, 29 July 2026

Definition of hopeless

Adjective

On a 30-story building, rooftop space may compete with mechanical systems and amenities, making conventional solar impractical.

— Zev Laine, Forbes.com, 31 July 2026
For a long time, our leading hypothesis was bullying and violence, but that may be a bit impractical, given their kingdoms are vast networks of tunnels that can stretch for up to three kilometers.

— Jacek Krywko, ArsTechnica, 21 July 2026

Definition of impractical

Adjective

However, year after year, predicting Preller’s midsummer machinations has proved a largely futile endeavor.

— Dennis Lin, New York Times, 30 July 2026
Now an Oda envoy and renowned strategist named Kanbei Kuroda (Masaki Suda) has come to Murashige’s fortress to convince him that resistance is futile.

— Justin Chang, New Yorker, 30 July 2026

Definition of futile

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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 8 Aug. 2026.

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Synonyms of impossible

adjective

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