impenetrable

At the highest navigable point of the Congo River, thick jungle creates an impenetrable wall of green around a large island.
The Congo's Forgotten Colonial Getaway|Nina Strochlic|December 18, 2014|DAILY BEAST
These reporters are working within a bubble, impenetrable to secular outsiders.
Who Gagged the Search for MH370?|Clive Irving|June 22, 2014|DAILY BEAST
But, as Korda clearly recognizes, Lee himself could be almost as impenetrable as stone.
How I Learned to Hate Robert E. Lee|Christopher Dickey|June 22, 2014|DAILY BEAST
The Brazilian defense, touted as impenetrable in pre-tournament hype, proved to be bedraggled, and porous.
Brazil Slips Past Croatia, Thanks to Yuichi Nishimura|Tunku Varadarajan|June 12, 2014|DAILY BEAST

He had two hits for three official at-bats; yet afterward his solitary gloom was impenetrable.
Murray Kempton on The Homecoming of Willie Mays|Murray Kempton|March 31, 2014|DAILY BEAST
The secret motives which actuate that mysterious woman are also impenetrable, but her fidelity is beyond a doubt.
The Fortunes of Hector O'Halloran, And His Man Mark Antony O'Toole|W. H. Maxwell
He had been prepared for abuse, but not for impenetrable silence.
One Day's Courtship|Robert Barr
When under the influence of the latter feeling, his eye never failed to seek the visage of his dull and impenetrable kinsman.
The Prairie|J. Fenimore Cooper
But this is really all which is known; and the creation of the poems lies in impenetrable mystery.
Short Studies on Great Subjects|James Anthony Froude
So Olear sidled into the all but impenetrable underbrush and slowly, with infinite caution, wormed his way along.
Astounding Stories, June, 1931|Various

British Dictionary definitions for impenetrable

impenetrable

/ (ɪmˈpɛnɪtrəbəl) /

adjective

incapable of being pierced through or penetratedan impenetrable forest

incapable of being understood; incomprehensibleimpenetrable jargon

incapable of being seen throughimpenetrable gloom

not susceptible to ideas, influence, etcimpenetrable ignorance

physics (of a body) incapable of occupying the same space as another body

Derived forms of impenetrable

impenetrability, nounimpenetrableness, nounimpenetrably, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

impenetrable

adjective

Words related to impenetrable

Words nearby impenetrable

Origin of impenetrable

SYNONYMS FOR impenetrable

ANTONYMS FOR impenetrable

OTHER WORDS FROM impenetrable

Examples from the Web for impenetrable

British Dictionary definitions for impenetrable

adjective

Derived forms of impenetrable