IMPOSSIBLE Synonyms: 70 Similar and Opposite Words

impossible

adjective

(ˌ)im-ˈpä-sə-bəl

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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Example Sentences

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Recent Examples of impossible Grant was almost impossible to rush at the plate. —

Ira Gorawara, New York Times, 15 May 2026 Often referred to as the next frontier of computing, quantum computers are being sought to complete calculations that are impossible for classical computers. —

Ameya Paleja, Interesting Engineering, 15 May 2026 The task of identifying and selecting the appropriate scientific information intended for public consumption and reflection is a daunting if not impossible task confronted by science journalists, given that today more than 1 million scientific reports are published every year. —

Prodromos Yannas, Encyclopedia Britannica, 14 May 2026 Not every one of the Padres’ 13 victories that have been earned by scoring the decisive run in the seventh inning or later falls into the category of virtually impossible to fathom. —

Kevin Acee, San Diego Union-Tribune, 14 May 2026 See All Example Sentences for impossible

Recent Examples of Synonyms for impossible

Adjective

The collapse of the government is unlikely to significantly affect Latvia’s foreign policy, as all mainstream parties are some variant of pro-Ukraine and anti-Russia.

— Brady Knox, The Washington Examiner, 15 May 2026
This is a true unlikely bedfellows situation, driven almost entirely by Lenya’s concern for his wife and son, who are in their government’s crosshairs.

— Sophie Brookover, Vulture, 15 May 2026