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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.

But that factor is not expected to impede the arrival of SpaceX, OpenAI and Anthropic.

From Barron's • May 17, 2026

Barr warned that proposals to shrink the balance sheet would undermine bank resilience and impede money market functioning.

From The Wall Street Journal • May 14, 2026

Federal prosecutors said while many people were peacefully demonstrating against immigration enforcement operations in Los Angeles County last summer, some people sought to use violence to obstruct, impede or injure officers conducting the enforcement operations.

From Los Angeles Times • 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

As in all consensus-driven bodies, though, members felt intense pressure not to impede progress with frivolous objections.

From "1491" by Charles C. Mann

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