Synonyms|289Antonyms|101|Broader|6Narrower|0Related|320
0
incapable
0
incompliant
0
independent
0
indomitably
0
infected
0
infectious
0
infusible
0
inhibited
0
insalubrious
0
insanitary
0
insubordinate
0
insuppressible
0
insurance
0
insurgent
0
insusceptible
0
intense
0
intensity
0
intractable
0
inviolate
0
invulnerable
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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>