Word.ws English Dictionary

impenetrably

impenetrably adverb: in an impenetrable manner or state; imperviously.

Adverb

impenetrably (comparative more impenetrably, superlative most impenetrably)

  1. In an impenetrable manner or state; imperviously.
    • Far otherwise the inviolable Saints,
      In cubick phalanx firm, advanced entire,
      Invulnerable, impenetrably armed;1667, John Milton, “Book VI”, in Paradise Lost. […], London: […] [Samuel Simmons], and are to be sold by Peter Parker […]; [a]nd by Robert Boulter […]; [a]nd Matthias Walker, […], →OCLC; republished...
    • And now, on Fancy’s easy wing convey’d,
      The King descended to th’ Elyzian shade.
      There, in a dusky vale where Lethe rolls,
      Old Bavius sits, to dip poetic souls,
      And blunt the sense, and fit it for a scull
      Of solid proof, impenetrably dull.1728, [Alexander Pope], “Book the Third”, in The Dunciad. An Heroic Poem. […], Dublin; London: […] A. Dodd, →OCLC, pages 135-136

Forms of impenetrably

comparativemore impenetrably
superlativemost impenetrably

Origin of impenetrably

From impenetrable + -ly.

Questions about impenetrably

What does impenetrably mean?
Impenetrably means in an impenetrable manner or state; imperviously.
What part of speech is impenetrably?
Impenetrably is an adverb.

Words near impenetrably in the dictionary

  1. impenetrabilities
  2. impenetrability
  3. impenetrable
  4. impenetrableness
  5. impenetrables
  6. impenetrably
  7. impenetralia
  8. impenetrate
  9. impenetrated
  10. impenetrates
  11. impenetrating

Source and license

Adapted from Wiktionary: impenetrably (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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