- Definitions|2
- Thesaurus|5k
- Abbreviations|0
80 entries under firm topic. ×
| changeless(adjective, solid, stable, fixed) | |
| immovable(adjective, strong, solid, stable) | |
| levelheaded(adjective, solid, stable, fixed) | |
| liege(adjective, solid, stable, fixed) | |
| loyal(adjective, solid, stable, fixed) | |
| never-failing(adjective, solid, stable, fixed) | |
| patterned(adjective, solid, stable, fixed) | |
| reserved(adjective, solid, stable, fixed) | |
| sedate(adjective, solid, big, heavy) | |
| self-possessed(adjective, solid, stable, fixed) | |
| serious-minded(adjective, solid, stable, fixed) | |
| single-minded(adjective, solid, stable, fixed) | |
| steady-going(adjective, solid, stable, fixed) | |
| unchanging(adjective, solid, steady, stable) | |
| unfaltering(adjective, solid, determined, stable) | |
| unqualified(adjective, solid, stable, fixed) | |
| unquestioning(adjective, solid, stable, fixed) | |
| unshaken(adjective, solid, stable, fixed) | |
| unswerving(adjective, solid, stable, fixed) | |
| wholehearted(adjective, solid, enthusiastic, vigorous) |
For more, visit
Substantial on
Power Thesaurus
| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms> |