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impenetrable

[im-pen-i-truh-buhl] / ɪmˈpɛn ɪ trə bəl /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Bent on surviving the trip, she decides early to bury her feelings in an impenetrable “garb of stone” and to fashion for herself an imperious personality.

From The Wall Street Journal • Apr. 3, 2026

"I'd be lying if I said I was a completely impenetrable robot," he tells the BBC.

From BBC • Mar. 29, 2026

The disclosures at funds like this often are as impenetrable as they are voluminous.

From The Wall Street Journal • Mar. 16, 2026

The primary difference between public and private prisons, experts told Salon, is that private prisons operate in an even more impenetrable black box than public prisons.

From Salon • Jan. 28, 2026

The chinks on the window slats changed color, from russet to an intensely dark blue that deepened into impenetrable darkness, until it didn’t matter if my eyes were open or closed.

From "When I Was Puerto Rican" by Esmeralda Santiago




Vocabulary lists containing impenetrable