796 entries under adjective topic. ×
| effective(clear, sound, extraordinary, important) | |
| estimable(good, great, excellent, perfect) | |
| factual(correct, reasonable, sensible, exact) | |
| flinty | |
| frozen(hard, firm, stiff, tense) | |
| fundamental(simple, whole, united) | |
| gargantuan(big, heavy, substantial, large) | |
| hale(strong, sound, complete, tough) | |
| impermeable(close, set, hard, tough) | |
| impregnable(safe, unyielding, sheltered, protected) | |
| incontestable | |
| indisputable | |
| integrated(simple, whole, united, cohesive) | |
| invariable(calm, strong, smooth, severe) | |
| just(good, sound, correct, right) | |
| natural(material, substantial, tangible) | |
| noble(outstanding, worthy, notable, eminent) | |
| nourishing(enthusiastic, vigorous, sincere, wholehearted) | |
| objective(physical, material, substantial, real) | |
| old(familiar, established, traditional, long-established) |
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| APA | Smart Define. (2016). solid thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/solid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "solid thesaurus" https://smartdefine.org/solid/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, solid thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/solid/thesaurus/synonyms>. |
| MLA | Smart Define. "solid thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/solid/thesaurus/synonyms> |