132 entries under level topic. ×
| invariable(adjective, quiet, soft, gentle) | |
| precise(adjective, calm, smooth, plain) | |
| punctured(adjective, smooth) | |
| quiet(adjective, soft, gentle, slow) | |
| reclining(adjective, smooth, even, lying) | |
| stable(adjective, calm, quiet, strong, direct) | |
| unruffled(adjective, quiet, soft, gentle) | |
| equable(adjective, calm, quiet, kind, smooth) | |
| fallen(adjective, smooth) | |
| glassy(adjective, quiet, smooth, soft, gentle) | |
| horizontally(adverb, position, flatly) | |
| laid low(adjective, smooth) | |
| outstretched(adjective, smooth) | |
| planate(adjective, calm, quiet, direct, smooth) | |
| polished(adjective, calm, quiet, smooth, soft) | |
| sleek(adjective, quiet, smooth, soft, gentle) | |
| soft(adjective, dull, quiet, weak, kind) | |
| spread out(adjective, smooth) | |
| square(adjective, dull, direct, smooth, simple) | |
| undeviating(adjective, quiet, strong, direct, smooth) |
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| APA | Smart Define. (2016). flat thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/flat/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "flat thesaurus" https://smartdefine.org/flat/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, flat thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/flat/thesaurus/synonyms>. |
| MLA | Smart Define. "flat thesaurus" 1 March 2016. Web. 21 September 2026. <https://smartdefine.org/flat/thesaurus/synonyms> |