167 entries under adjective topic. ×
| parallel(calm, direct, smooth, right) | |
| plain(calm, quiet, smooth, soft) | |
| procumbent(smooth, flat, low, level) | |
| tabular | |
| upright(smooth, solid, level, true) | |
| vertical(smooth, solid, level, true) | |
| aligned(calm, smooth, flat, plain) | |
| balanced(calm, direct, smooth, right) | |
| calm(smooth, flat, plain, level) | |
| erect(verb, smooth, solid, level) | |
| linear(smooth, right, solid, level) | |
| lying down(expression, lying) | |
| perpendicular | |
| planar(flat, even) | |
| plumb(direct, smooth, right, flat) | |
| steady(calm, quiet, smooth, right) | |
| transverse | |
| undeviating(quiet, direct, smooth, right) | |
| alike(calm, direct, smooth, right) | |
| bland(quiet, soft, gentle, flat) |
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| APA | Smart Define. (2015). horizontal thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/horizontal/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "horizontal thesaurus" https://smartdefine.org/horizontal/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, horizontal thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/horizontal/thesaurus/synonyms>. |
| MLA | Smart Define. "horizontal thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/horizontal/thesaurus/synonyms> |