- Definitions|1
- Thesaurus|280
- Abbreviations|0
30 entries under hard topic. ×
| close(tough, solid, rigid, inflexible) | |
| impenetrable(solid, rigid, resistant, impervious) | |
| impermeable(adjective, solid, rigid, resistant) | |
| compact(solid, rigid, density) | |
| dense(solid, rigid, resistant, impervious) | |
| firm(adjective, solid, rigid, inflexible) | |
| concrete(tough, solid, rigid, inflexible) | |
| thick(solid, rigid, syrupy, jellied) | |
| solid(rigid, resistant, impervious, density) | |
| substantial(solid, rigid, density) | |
| compressed(tough, solid, rigid, inflexible) | |
| concentrated(tough, solid, rigid, inflexible) | |
| condensed(tough, solid, rigid, inflexible) | |
| heavy(tough, solid, rigid, inflexible) | |
| close-grained(tough, solid, rigid, inflexible) | |
| congealed(tough, solid, rigid, inflexible) | |
| fine-grained(tough, solid, rigid, inflexible) | |
| hardened(tough, solid, rigid, inflexible) | |
| impervious(tough, solid, rigid, inflexible) | |
| inelastic(tough, solid, rigid, inflexible) |
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| APA | Smart Define. (2015). nonporous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/nonporous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nonporous thesaurus" https://smartdefine.org/nonporous/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, nonporous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/nonporous/thesaurus/synonyms>. |
| MLA | Smart Define. "nonporous thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/nonporous/thesaurus/synonyms> |