170 entries under difficulty topic. ×
| rigorousness(laboriousness, strenuousness) | |
| spot(problem, bug, impediment, hitch) | |
| tedium(toughness, hardness) | |
| tie(weakness, burden, defect, impairment) | |
| tight spot(expression, arrest, bug, impediment) | |
| toughness | |
| web | |
| worriment(noun, trouble, dispute, issue) | |
| question(noun, trouble, dispute, issue) | |
| red tape(expression, weakness, burden, defect) |
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| APA | Smart Define. (2015). obstacle thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/obstacle/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "obstacle thesaurus" https://smartdefine.org/obstacle/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, obstacle thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/obstacle/thesaurus/synonyms>. |
| MLA | Smart Define. "obstacle thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/obstacle/thesaurus/synonyms> |