obstacle

noun

ob·​sta·​cle ˈäb-sti-kəl 

-ˌsti-

: something that impedes progress or achievement

Mosquitoes were a great obstacle to the building of the Panama Canal.

… elders … often facing daily medical, social, and psychological obstacles.

—Vicki Bloom and B. B. Green-Field

Synonyms

• hurdle
• obstruction
• embarrassment
• barrier

Examples of obstacle in a Sentence

He overcame the obstacles of poverty and neglect.

They must overcome a number of obstacles before the restaurant can be opened.

Lack of experience is a major obstacle for her opponent.

She swerved to avoid an obstacle in the road.

Recent Examples on the Web

Highlighting the beauty and peril of open water swimming and the obstacles women continue to face in the pursuit of equality, Vindication Swim has been praised for its vivid portrait of Gleitze as a pioneering trailblazer for women’s open water swimming around the world. —Melanie Goodfellow, Deadline, 6 Aug. 2025

The move by Maxwell, while expected, adds to the obstacles the DOJ must overcome to release grand jury transcripts from Epstein's and Maxwell's cases. —Tracy Wright, FOXNews.com, 5 Aug. 2025

Bryan Johnson, like many others, maintains that A.I. is on the verge of unlocking the medical obstacles to immortality. —Tad Friend, New Yorker, 4 Aug. 2025

Success For Gen Zers in rural counties, lack of a college degree is no career obstacle. —Diane Brady, Fortune, 4 Aug. 2025

Word History

Etymology

Middle English, from Anglo-French, from Latin obstaculum, from obstare to stand in front of, from ob- in the way + stare to stand — more at ob-, stand

First Known Use

14th century, in the meaning defined above

Phrases Containing obstacle

• obstacle course
• obstacle race

Kids Definition

obstacle

noun

ob·​sta·​cle ˈäb-sti-kəl 

: something that stands in the way of progress or achievement : hindrance

drove around the obstacles in the road

didn't let shortness be an obstacle to a basketball career