stumbling block

noun

1. an obstacle or hindrance to progress, belief, or understanding.

   Synonyms: bar, block, impediment, barrier, hurdle

stumbling block

noun

1. any impediment or obstacle

Word History and Origins

Origin of stumbling block¹

First recorded in 1580–90

Idioms and Phrases

A hindrance or obstacle, as in His lack of a degree is a real stumbling block to his advancement. This term originally meant “a tree stump over which one trips.” Its figurative use dates from the early 1500s.

Example Sentences

The AA said drivers "frequently tell us that the upfront costs of new EVs are a stumbling block to making the switch to electric".

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The stumbling block was Lloyd’s of London, the world’s largest insurance marketplace, which Neal helmed for more than six years before stepping down as CEO in January, the people familiar with the matter said.

Read more on The Wall Street Journal

He was supposed to be Brazil's next superstar and part of Real Madrid's new era of Galacticos, but Endrick's career has hit a stumbling block.

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The two circuit's different formats had reportedly been a key stumbling block in ongoing negotiations.

Read more on Barron's

But his demand for a separate Naga flag and constitution remains a stumbling block.

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Related Words

• barrier 
• complication 
• deterrent 
• difficulty 
• drawback 
• hindrance 
• hitch 
• hurdle 
• impediment 
• obstacle 
• setback 
• snag