906 entries under adjective topic. ×
| blind(dull, lackluster) | |
| blunt | |
| calm(cool, weak, kind, smooth) | |
| collapsed(smooth, level) | |
| common(noun, calm, dull, set) | |
| consistent(calm, strong, direct, smooth) | |
| constant(calm, strong, smooth, right) | |
| deadened(quiet, stifled, non-resonant) | |
| dingy(dull, soft, obscure, dark) | |
| dismal(dull, soft, obscure, dark) | |
| dry-as-dust | |
| equal | |
| extended(smooth, level) | |
| flattened(smooth, leveled) | |
| hard(dull, severe, sharp, rough) | |
| indifferent(calm, dull, quiet, cool) | |
| innocuous(dull, lackluster, harmless) | |
| insolvent(poor, low, exhausted, meager) | |
| invariable(quiet, soft, gentle, level) | |
| lying |
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| APA | Smart Define. (2016). flat thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/flat/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "flat thesaurus" https://smartdefine.org/flat/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, flat thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/flat/thesaurus/synonyms>. |
| MLA | Smart Define. "flat thesaurus" 1 March 2016. Web. 22 September 2026. <https://smartdefine.org/flat/thesaurus/synonyms> |