- Definitions|2
- Thesaurus|716
- Abbreviations|0
30 entries under firm topic. ×
| fastened(adjective, true, fixed, constant) | |
| glued(true, fixed, constant, steadfast) | |
| held(true, fixed, constant, steadfast) | |
| inextricable(true, fixed, constant, steadfast) | |
| loyal(true, fixed, constant, steadfast) | |
| stuck(true, fixed, constant, steadfast) | |
| true(fixed, constant, steadfast, immovable) | |
| true blue(expression, true, fixed, constant) | |
| unwavering(true, fixed, constant, steadfast) | |
| wedged(true, fixed, constant, steadfast) |
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| APA | Smart Define. (2015). impregnable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impregnable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impregnable thesaurus" https://smartdefine.org/impregnable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, impregnable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impregnable/thesaurus/synonyms>. |
| MLA | Smart Define. "impregnable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/impregnable/thesaurus/synonyms> |