stumbling block

noun

stum·​bling block ˈstəm-bliŋ- 

1

: an obstacle to progress

2

: an impediment to belief or understanding : perplexity

Synonyms of stumbling block

• obstacle
• hurdle
• obstruction
• embarrassment

Examples of stumbling block in a Sentence

Lack of funds is a major stumbling block to the project.

My plans hit a stumbling block.

Recent Examples on the Web

But the process has been riddled with stumbling blocks – including persistent fighting between Israel and Hezbollah, which threatened to derail US-Iran talks last week. — Jessie Yeung, CNN Money, 25 June 2026

Since then, the process has stretched to require four different levels of review, each with a list of procedural requirements that pose stumbling blocks for prisoners seeking help. — Christie Thompson, NPR, 17 June 2026

The talent was clearly there, but there was always a stumbling block. — Mark Anderson, Los Angeles Times, 15 June 2026

The talent was clearly there, but there was always a stumbling block. — ABC News, 14 June 2026

Word History

First Known Use

1588, in the meaning defined at sense 1

Rhymes for stumbling block

• aftershock
• antiknock
• arawak
• hollyhock
• interlock
• manioc
• shuttlecock
• tomahawk
• weathercock
• alcock
• beanstalk
• bedrock

Kids Definition

stumbling block

noun

stum·​bling block ˈstəm-bliŋ- 

1

: an obstacle to belief or understanding

2

: an obstacle to progress