136 entries under firm topic. ×
| solidly(adverb, firmly) | |
| steadfastly(adverb, firmly) | |
| steadily(adverb, firmly) | |
| thick(adjective, close, strong, hard) | |
| tightly(adverb, firmly) | |
| unbending(adjective, close, strong, flat) | |
| unqualified(adjective, strong, flat, solid) | |
| unshaken(adjective, strong, flat, solid) | |
| weighty(adjective, strong, solid, important) | |
| adherent(true, fixed, constant, steadfast) | |
| allegiant(adjective, solid, fixed, resolute) | |
| clear(adjective, fixed, ingrained, unshakable) | |
| committed(adjective, steady, resolute, persistent) | |
| deeply | |
| fixedly | |
| glued(true, fixed, constant, steadfast) | |
| hard and fast(expression, adjective, idiom, solid) | |
| hardened inflexible(expression, solid, stiff, inflexible) | |
| held(true, fixed, constant, steadfast) | |
| inextricable(true, fixed, constant, steadfast) |
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| APA | Smart Define. (2015). stable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stable thesaurus" https://smartdefine.org/stable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, stable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stable/thesaurus/synonyms>. |
| MLA | Smart Define. "stable thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/stable/thesaurus/synonyms> |