Antonyms for impenetrable

Grammar : Adj

Spell : im-pen-i-truh-buhl

Phonetic Transcription : ɪmˈpɛn ɪ trə bəl

Definition of impenetrable

Origin : mid-15c., from Middle French impenetrable, from Latin impenetrabilis "that cannot be penetrated," from assimilated form of in- "not, opposite of" (see in- (1)) + penetrabilis "penetrable" (see penetrate). Related: Impenetrably; impenetrability.

adj dense
adj incomprehensible

Example sentences :

“An impenetrable mystery” was sure “to hang for ever” as far as all mankind was concerned.
Extract from : « The Secret Agent » by Joseph Conrad

Kirkwood smiled grimly, with a face of brass, impenetrable, inflexible.
Extract from : « The Black Bag » by Louis Joseph Vance

Go not to the Alhambra: the fort is impenetrable—the guard faithful.
Extract from : « Leila, Complete » by Edward Bulwer-Lytton

He had been prepared for abuse, but not for impenetrable silence.
Extract from : « One Day's Courtship » by Robert Barr

Since then Tawabinisy had hidden himself behind his impenetrable grin.
Extract from : « The Forest » by Stewart Edward White

Night had now closed in the most dense and impenetrable darkness.
Extract from : « Gomez Arias » by Joaqun Telesforo de Trueba y Coso

Every thing had the face of uncultivated luxuriance, and impenetrable solitude.
Extract from : « Imogen » by William Godwin

I turned to find the dark and impenetrable eyes of von Francius fixed on me.
Extract from : « The First Violin » by Jessie Fothergill

In one moment an impenetrable barrier had been erected between them.
Extract from : « Where Angels Fear to Tread » by E. M. Forster

But in the morning he was compelled to stop before the impenetrable ice.
Extract from : « The Voyages and Adventures of Captain Hatteras » by Jules Verne

Synonyms for impenetrable

Based on : Thesaurus.com - Gutenberg.org - Dictionary.com - Random House Unabridged Dictionary, © Random House, Inc. 2019