- Definitions|0
- Thesaurus|296
- Abbreviations|0
79 entries under firm topic. ×
| solid(adjective, certain, steady, substantial) | |
| sound(adjective, solid, stable, fixed) | |
| stable(adjective, strong, flat, solid) | |
| staid(adjective, solid, stable, fixed) | |
| staunch(adjective, strong, flat, solid) | |
| steady-going(adjective, solid, substantial, stable) | |
| unchangeable(adjective, strong, flat, solid) | |
| unchanging(adjective, set, clear, solid) | |
| undeviating(adjective, strong, flat, solid) | |
| unequivocal(adjective, set, clear, total) | |
| unmodifiable(adjective, certain, limited, definite) | |
| unshakable(adjective, clear, strong, solid) | |
| unshaken(adjective, set, clear, strong, flat) | |
| unswerving(adjective, set, total, solid) | |
| unvarying(adjective, set, clear, solid) | |
| allegiant(adjective, solid, intense, stable) | |
| balanced(adjective, solid, stable, fixed) | |
| brick-wall(adjective, solid, steady, substantial) | |
| calm(adjective, solid, stable, fixed) | |
| cool(adjective, solid, stable, fixed) |
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| APA | Smart Define. (2015). never-failing thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/never-failing/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "never-failing thesaurus" https://smartdefine.org/never-failing/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, never-failing thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/never-failing/thesaurus/synonyms>. |
| MLA | Smart Define. "never-failing thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/never-failing/thesaurus/synonyms> |