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roadblock

American  
[rohd-blok] / ˈroʊdˌblɒk /

noun

roadblocks plural
  1. an obstruction placed across a road, especially of barricades or police cars, for halting or hindering traffic, as to facilitate the capture of a pursued car or inspection for safety violations.

  2. an obstruction on a road, as a fallen tree or a pile of fallen rocks.

  3. a hastily built barricade, as of barbed wire, erected across a road to hold up the advance of an enemy.

  4. an action, condition, etc., that obstructs progress toward an objective.

    Nationalism is a roadblock to European unity.


verb (used with object)

  1. to halt or obstruct with or as if with a roadblock.

roadblock British  
/ ˈrəʊdˌblɒk /

noun

  1. a barrier set up across a road by the police or military, in order to stop a fugitive, inspect traffic, etc

  2. a difficulty or obstacle to progress

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of roadblock

First recorded in 1935–40; road + block

Explanation

A literal roadblock is a barricade or obstruction that's meant to block traffic. A figurative roadblock is any situation you encounter that makes it difficult or impossible to do what you want or need to do. When a driver encounters a roadblock, she has to stop and go back, or to take a detour and use a different route. This sort of roadblock might be set up to divert cars away from construction or an accident. Other roadblocks are obstructions to progress, like a lawsuit that halts construction on a building or the high cost of something: "The price of converting to a solar water heater was a roadblock to our plans."

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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.

Smart glasses developed by various companies in various ways over the last 15 years or so have all eventually hit the same roadblock: They’re creepy.

From Salon • Jul. 2, 2026

Travel ball begins in June, and that’s the big roadblock for softball, with many coaches and players participating.

From Los Angeles Times • May 27, 2026

The company cleared a major roadblock to its IPO earlier this week, when it won a legal fight with its co-founder turned Altman foe Elon Musk.

From The Wall Street Journal • May 20, 2026

Justice Department on Friday said it would end its probe into Powell, clearing a major roadblock to Warsh’s confirmation.

From MarketWatch • Apr. 26, 2026

The dead become this massive roadblock standing between the Persians and the road to Sparta.

From "The Fault in Our Stars" by John Green

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