Synonyms|289Antonyms|101|Broader|6Narrower|0Related|320

4 entries under adjective topic. ×

1
creative(original, innovative, inventive, originative)
0
fertile
0
invulnerable
0
unconquerable
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APASmart Define. (2015). impregnable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impregnable/thesaurus/related
ChicagoSmart Define. 2015. "impregnable thesaurus" https://smartdefine.org/impregnable/thesaurus/related (accessed September 23, 2026).
HarvardSmart Define 2015, impregnable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impregnable/thesaurus/related>.
MLASmart Define. "impregnable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/impregnable/thesaurus/related>