- Definitions|1
- Thesaurus|255
- Abbreviations|0
35 entries under adjective topic. ×
| unshakable | |
| watertight | |
| armored(defense, strengthened) | |
| unassailable | |
| invincible | |
| inviolable(solid, dense, impassable, indestructible) | |
| armoured | |
| impenetrable | |
| tight | |
| bullet-proof | |
| invulnerable | |
| solid | |
| steady | |
| strong(protected, strengthened, impassable, untouchable) | |
| untouchable(impassable, invincible, indestructible) | |
| close(solid, dense, impervious, impassable) | |
| heavily clad(expression, protected) | |
| immovable | |
| impassable(secure, solid, dense, invulnerable) | |
| impregnable |
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| APA | Smart Define. (2015). bulletproof thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/bulletproof/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "bulletproof thesaurus" https://smartdefine.org/bulletproof/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, bulletproof thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/bulletproof/thesaurus/synonyms>. |
| MLA | Smart Define. "bulletproof thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/bulletproof/thesaurus/synonyms> |