| resting(adjective, motionless) | |
| secure(adjective, calm, strong, substantial, fixed) | |
| serene(adjective, calm, quiet, smooth, tranquil) | |
| silent(adjective, calm, quiet, smooth, tranquil) | |
| smooth(adjective, calm, quiet, tranquil, silent) | |
| unchangeable(calm, strong, solid, steady, substantial) | |
| unchanged | |
| undestroyed | |
| undisturbed(adjective, calm, quiet, smooth, tranquil) | |
| uniform(adjective, calm, strong, solid, steady) | |
| unoccupied(adjective, motionless, unmoving) | |
| unruffled(adjective, calm, quiet, smooth, tranquil) | |
| vegetable | |
| adamant | |
| adamantine | |
| apathetic(adjective, inert) | |
| attached(adjective, secure, rigid, inflexible, stubborn) | |
| balanced(calm, strong, solid, steady, substantial) | |
| brick-wall(calm, strong, solid, steady, substantial) | |
| buttoned up(expression, adjective, calm, quiet, smooth) |
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| APA | Smart Define. (2016). stationary thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/stationary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "stationary thesaurus" https://smartdefine.org/stationary/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, stationary thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/stationary/thesaurus/synonyms>. |
| MLA | Smart Define. "stationary thesaurus" 5 January 2016. Web. 26 September 2026. <https://smartdefine.org/stationary/thesaurus/synonyms> |