- Definitions|2
- Thesaurus|716
- Abbreviations|0
135 entries under adjective topic. ×
| buttoned up(expression, secure, safe, snug) | |
| cherished(secure, safe, snug, intact) | |
| close(firm, true, fixed, constant) | |
| dangerous(hazardous, troubling) | |
| fixed(firm, true, steady, resolute) | |
| formidable(horrible, terrifying) | |
| heavy | |
| home-free(secure, safe, snug, intact) | |
| in safety(expression, secure, safe, snug) | |
| infrangible | |
| intact(secure, safe, snug, sheltered) | |
| maintained(secure, safe, snug, intact) | |
| okay(secure, safe, snug, intact) | |
| potent | |
| preserved(secure, safe, snug, intact) | |
| sacrosanct | |
| set(firm, true, fixed, constant) | |
| sheltered(secure, safe, snug, intact) | |
| sitting pretty(expression, secure, safe, snug) | |
| snug(secure, safe, intact, guarded) |
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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> |