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Synonyms

impede

American  
[im-peed] / ɪmˈpid /

verb (used with object)

impeded, impeding
  1. to retard in movement or progress by means of obstacles or hindrances; obstruct; hinder.

    Synonyms:
    thwart, block, stop, check, delay, slow
    Antonyms:
    encourage, advance

impede British  
/ ɪmˈpiːd /

verb

  1. (tr) to restrict or retard in action, progress, etc; hinder; obstruct

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See prevent.

Other Word Forms

Etymology

Origin of impede

First recorded in 1595–1605; from Latin impedīre “to entangle,” literally, “to snare the feet”; see im- 1, pedi- ( def. )

Explanation

To impede something is to delay or block its progress or movement. Carrying six heavy bags will impede your progress if you're trying to walk across town in a hurry. Impede comes from the Latin impedire which literally means "to hold the feet," formed from the prefix in-, ("in") plus pes ("foot"). Think about walking with a cast on your foot — how slow and awkward that would be. If you struggle with reading, that might impede your progress in your social studies class. An impediment is something that impedes, such as a physical defect that affects speech — a speech impediment.

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Vocabulary lists containing impede

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In addition, across the entire city, the law bans blocking sidewalks in ways that would impede a wheelchair or within several feet of a driveway or building entrance.

From Los Angeles Times • May 19, 2026

Barrett said he’s not sure that the wells have actually sustained that much damage, but it’s one of many unknowns that could impede the oil market’s comeback.

From Barron's • May 6, 2026

He said that Ising’s two AI models, Ising Calibration and Ising Decoder, tackle major challenges that could otherwise impede the creation of quantum systems.

From MarketWatch • Apr. 15, 2026

“CENTCOM forces will not impede freedom of navigation for vessels transiting the Strait of Hormuz to and from non-Iranian ports.”

From Salon • Apr. 14, 2026

An albatross, with its effortless flight, also seemed like a good idea, except a lack of water might impede her ability to take off and land.

From "The Girl Who Drank the Moon" by Kelly Barnhill

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