113 entries under reasonable topic. ×
| quiet(adjective, calm, clear, smooth) | |
| ratiocinative(adjective, clear, sound, sensible) | |
| relevant(clear, sound, sensible, rational) | |
| sagacious(sound, sensible, rational, healthy) | |
| sedate(adjective, calm, quiet, sensible) | |
| severe(adjective, calm, quiet, sensible) | |
| soft(adjective, calm, quiet, smooth) | |
| solemn(adjective, calm, quiet, sensible) | |
| somber(adjective, calm, quiet, sensible) | |
| staid(adjective, calm, quiet, sensible) | |
| steady(adjective, calm, quiet, sound) | |
| subdued(adjective, calm, quiet, sensible) | |
| subtle(clear, sound, sensible, rational) | |
| toned down(expression, adjective, calm, quiet) | |
| unexcited(adjective, calm, quiet, sensible) | |
| unimpassioned(adjective, calm, quiet, sensible) | |
| unruffled(adjective, calm, quiet, sensible) | |
| well-organized(clear, sound, sensible, rational) | |
| cerebral(sound, sensible, reasoning, intellectual) | |
| cognitive(sound, sensible, reasoning, intellectual) |
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| APA | Smart Define. (2016). lucid thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lucid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "lucid thesaurus" https://smartdefine.org/lucid/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, lucid thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lucid/thesaurus/synonyms>. |
| MLA | Smart Define. "lucid thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/lucid/thesaurus/synonyms> |