Impregnable

//ɪmˈpɹɛɡ.nəˌb(ə)l//

Word Forms of "impregnable" (4 forms)

Adjective
Comparativemore impregnable
Comparativemore impregnable
Superlativemost impregnable
Superlativemost impregnable

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