obstruct

verb

ob·​struct əb-ˈstrəkt 

äb-

obstructed; obstructing; obstructs

transitive verb

1

: to block or close up by an obstacle

A piece of food obstructed his airway.

The road was obstructed by a fallen tree.

2

: to hinder from passage, action, or operation : impede

Constant interruptions obstruct our progress.

was charged with obstructing justice by lying to investigators

3

: to cut off from sight

A wall obstructs the view.

obstructive

əb-ˈstrək-tiv 

äb-

adjective or noun

obstructiveness noun

obstructor

əb-ˈstrək-tər 

äb-

noun

Synonyms

• clog
• cramp
• embarrass
• encumber
• fetter
• hamper
• handcuff
• handicap
• hinder
• hobble
• hog-tie
• hold back
• hold up
• impede
• inhibit
• interfere (with)
• manacle
• shackle
• short-circuit
• stymie
• tie up
• trammel

Choose the Right Synonym for obstruct

hinder, impede, obstruct, block mean to interfere with the activity or progress of.

hinder stresses causing harmful or annoying delay or interference with progress.

rain hindered the climb

impede implies making forward progress difficult by clogging, hampering, or fettering.

tight clothing that impedes movement

obstruct implies interfering with something in motion or in progress by the sometimes intentional placing of obstacles in the way.

the view was obstructed by billboards

block implies complete obstruction to passage or progress.

a landslide blocked the road

Examples of obstruct in a Sentence

A large tree obstructed the road.

A piece of food obstructed his airway and caused him to stop breathing.

She was charged with obstructing police.

She was charged with obstructing justice by lying to investigators.

Recent Examples on the Web

The organization said Choi ran with the assistance of two unauthorized people riding the course on electric bicycles, which obstructed runners. —Marlene Lenthang, NBC News, 5 Nov. 2024

Spencer, who was defeated in his re-election bid in April, is facing charges of felony misconduct in office and resisting or obstructing an officer, a misdemeanor. —Alison Dirr, Journal Sentinel, 5 Nov. 2024

The humanitarian crisis in northern Gaza has been exacerbated by a sustained Israeli military campaign that has obstructed aid delivery since mid-October. —Marco Rubio, Newsweek, 1 Nov. 2024

Many of those involved in obstructing the vote in 2020 still hold office, including fifteen county-level Board of Elections members who opposed or delayed certifying election results and five G.O.P. state officials who attempted to throw Pennsylvania’s Electoral College votes to Trump in 2020. —Eliza Griswold, The New Yorker, 31 Oct. 2024

Word History

Etymology

Latin obstructus, past participle of obstruere, from ob- in the way + struere to build, heap up — more at ob-, strew

First Known Use

1590, in the meaning defined at sense 1

Kids Definition

obstruct

verb

ob·​struct əb-ˈstrəkt 

äb-

1

: to close up by an obstacle

a fallen tree obstructed the roadway

2

: to be or get in the way of : hinder

lying to the police obstructs justice

Medical Definition

obstruct

transitive verb

ob·​struct əb-ˈstrəkt, äb- 

: to block or close up by an obstacle

veins obstructed by clots