Impervious

"Impervious" in ca

immune

(unaffected or unable to be affected by something)

immune

(immune to damage or effect)

impenetrable

(preventative of any penetration; impenetrable, impermeable)

impermeable

(preventative of any penetration; impenetrable, impermeable)

invulnerable

(immune to damage or effect)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.