79 entries under secure topic. ×
| tightened(strong, substantial, stable, unmoving) | |
| welded(strong, substantial, stable, unmoving) | |
| set in stone(expression, adjective, idiom, calm, strong) | |
| solid as a rock(expression, adjective, idiom, calm, strong) | |
| braced(strong, substantial, stable, unmoving) | |
| hitched(rigid, inflexible, stubborn, immovable) | |
| hooked(rigid, inflexible, stubborn, immovable) | |
| located(rigid, inflexible, stubborn, immovable) | |
| made fast(expression, rigid, inflexible, stubborn) | |
| mounted(strong, substantial, stable, unmoving) | |
| petrified(strong, substantial, stable, unmoving) | |
| quiet(rigid, inflexible, stubborn, immovable) | |
| screwed(strong, substantial, stable, unmoving) | |
| situated(rigid, inflexible, stubborn, immovable) | |
| soldered(strong, substantial, stable, unmoving) | |
| spiked(strong, substantial, stable, unmoving) | |
| static | |
| still(rigid, inflexible, stubborn, immovable) | |
| unmoving(strong, substantial, stable, rigid) |
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| APA | Smart Define. (2016). fast thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fast/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fast thesaurus" https://smartdefine.org/fast/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, fast thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fast/thesaurus/synonyms>. |
| MLA | Smart Define. "fast thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/fast/thesaurus/synonyms> |