stumbling block

American  

noun

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

   Synonyms:

   bar, block, impediment, barrier, hurdle

---

stumbling block British  

noun

1. any impediment or obstacle

---

stumbling block Idioms  

1. 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.

---

Etymology

Origin of stumbling block

First recorded in 1580–90

Example Sentences

“The state bar case was once a stumbling block, but today it is a stepping stone,” she wrote.

From Los Angeles Times • May 1, 2026

With that, the stock market’s rally to fresh record highs hit a stumbling block on Monday, as oil prices climbed and confidence around a swift resolution to the Iran war was tested.

From MarketWatch • Apr. 20, 2026

Also, given three of Ireland's six T20s during the home summer of 2025 were lost to the rain, cynics will likely point to weather in western Europe come September as a potential stumbling block too.

From BBC • Jan. 20, 2026

“Corruption is a major obstacle and a stumbling block in the advancement of the party and the nation’s causes,” Xi said this week at a conclave of the party’s Central Commission for Discipline Inspection.

From The Wall Street Journal • Jan. 17, 2026

But the real stumbling block was the bases.

From "Double Helix" by James D. Watson

Related Words

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