Jeremiah 46:23 They shall cut down her forest, saith Jehovah, though it be impenetrable; for they are more than the locusts, and are innumerable. (DBY RSV)

Adamant (2 Occurrences)
... 1. (n.) Unyielding in opinion; also a stone or diamond perceived to be of impenetrable
hardness; a name given to the diamond and other substances of extreme ...
/a/adamant.htm - 9k

Jungle (4 Occurrences)
... Noah Webster's Dictionary (n.) A dense growth of brushwood, grasses, reeds, vines,
etc.; an almost impenetrable thicket of trees, canes, and reedy vegetation ...
/j/jungle.htm - 8k

Impending (2 Occurrences)

/i/impending.htm - 7k

Impenitent (1 Occurrence)

/i/impenitent.htm - 6k

Edrei (8 Occurrences)
... about 20 feet above the plain, it is a labyrinth of clefts and crevasses in the
rock, formed by volcanic action; and owing to its impenetrable condition, it ...
/e/edrei.htm - 11k

Merom (2 Occurrences)
... Mediterranean. It is surrounded by a morass, which is thickly covered with
canes and papyrus reeds, which are impenetrable. Macgregor ...
/m/merom.htm - 10k

Proof (38 Occurrences)
... performed. Cf. Prove, vt, 5. 7. (vt) Armor of excellent or tried quality,
and deemed impenetrable; properly, armor of proof. 8. (a ...
/p/proof.htm - 18k

Pathless (2 Occurrences)
... Noah Webster's Dictionary (a.) Having no beaten path or way; untrodden; impenetrable;
as, pathless woods. Multi-Version Concordance Pathless (2 Occurrences). ...
/p/pathless.htm - 7k

Blackness (13 Occurrences)
... The horror of darkness culminates in the impenetrable blackness of the under-world,
the eternal abode of fallen angels and riotously immoral and ungodly men ...
/b/blackness.htm - 12k