What is another word for impenetrable?

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Adjective Impossible to get through or into impervious impermeable dense solid thick hard impassable impregnable inviolable unpierceable indestructible puncture-proof unbreakable unyielding closed impassible invulnerable resistant sealed tight unassailable unattackable waterproof hermetic safe secure bulletproof close compact firm hermetically sealed murky substantial unpiercable tightly packed “The range forms an impenetrable barrier between Europe and Asia.” Adjective Impossible to understand incomprehensible baffling inscrutable mysterious unintelligible inexplicable obscure unfathomable cryptic arcane enigmatic bewildering confusing dark Delphic enigmatical fathomless hidden perplexing puzzling unclear abstruse complex complicated deep mystic occult opaque recondite uncanny ungraspable cabbalistic difficult hard impossible to understand indiscernible insolvable wildering cabalistic incognizable indecipherable sibylline sphinxlike unaccountable unknowable unsolvable “But as a technology columnist, I'm in the business of coming up with confusing and impenetrable reactions to events around me.” Adjective Impossible to pass through or enter impassable dense inaccessible overgrown pathless thick trackless unnavigable unpassable untraversable untrodden jungle-like jungly thickset “But the circle of outraged nobles had made an almost impenetrable wall surrounding the king and the prince.” Adjective exclusive private secret secretive discriminative limited restricted restrictive Find more words! 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Sentences with the word impenetrable Words that rhyme with impenetrable What is the adjective for impenetrable? What is the adverb for impenetrable? What is the noun for impenetrable? Translations for impenetrable Use our Synonym Finder Watch and Learn Nearby Words impenetrableness impenetrably impenitence impenitences impenitencies impenitency impenetrability impenetrabilities impends over impends impend over impending over 12-letter Words Starting With i im imp impe impen impene impenet impenetr impenetra impenetrab impenetrabl