23 entries under upright topic. ×
| stiff(adjective, firm, straight) | |
| straight up(expression, adjective, sharp, firm, course) | |
| upward(adjective, straight, steep, erect) |
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| APA | Smart Define. (2015). perpendicular thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/perpendicular/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "perpendicular thesaurus" https://smartdefine.org/perpendicular/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, perpendicular thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/perpendicular/thesaurus/synonyms>. |
| MLA | Smart Define. "perpendicular thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/perpendicular/thesaurus/synonyms> |