See more synonyms for roadblock on
  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.

Origin of roadblock

First recorded in 1935–40; road + block Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for roadblock

blockade, barricade, obstruction

Examples from the Web for roadblock

Contemporary Examples of roadblock

Historical Examples of roadblock

British Dictionary definitions for roadblock


  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

Word Origin and History for roadblock

1940, from road + block (n.).

Online Etymology Dictionary, © 2010 Douglas Harper