- to block or close up with an obstacle; make difficult to pass: Debris obstructed the road.
- to interrupt, hinder, or oppose the passage, progress, course, etc., of.
- to block from sight; to be in the way of (a view, passage, etc.).
Origin of obstruct
SynonymsSee more synonyms for obstruct on Thesaurus.com
1. stop, choke, clog, hinder, impede, prevent; check, slow, retard, arrest.
1. encourage, further.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- to block (a road, passageway, etc) with an obstacle
- to make (progress or activity) difficult
- to impede or block a clear view of
C17: Latin obstructus built against, past participle of obstruere, from ob- against + struere to build
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 nonobstructive
1610s, a back-formation from obstruction or else from Latin obstructus, past participle of obstruere "to block, to stop up" (see obstruction). Related: Obstructed; obstructing.
Online Etymology Dictionary, © 2010 Douglas Harper
- To block or close a body passage so as to hinder or interrupt a flow.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.