impenetrable

im·pen·e·tra·ble  (m-pn-tr-bl)

adj.

1. Impossible to penetrate or enter: an impenetrable fortress.

2. Impossible to understand; incomprehensible: impenetrable jargon.

3. Impervious to sentiment or argument: an impenetrable heart.

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im·pene·tra·ble·ness n.

im·pene·tra·bly adv.

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impenetrable

Adjective

1. impossible to get through: an impenetrable barrier

2. impossible to understand

3. not receptive to ideas or influence: impenetrable ignorance

impenetrability n
impenetrably adv

Thesaurus

Adj.	1.	impenetrable - not admitting of penetration or passage into or through; "an impenetrable fortress"; "impenetrable rain forests" penetrable - admitting of penetration or passage into or through; "a penetrable wall"; "penetrable defenses"
	2.	impenetrable - permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog"; "impenetrable gloom" dense, heavy thick - relatively dense in consistency; "thick cream"; "thick soup"; "thick smoke"; "thick fog"
	3.	impenetrable - impossible to understand; "impenetrable jargon" uncomprehensible, incomprehensible - difficult to understand; "the most incomprehensible thing about the universe is that it is comprehensible"- A. Einstein

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impenetrable

adjective 1. impassable, solid, impervious, thick, dense, hermetic, impermeable, inviolable, unpierceable << OPPOSITE passable

adjective 2. incomprehensible, obscure, baffling, dark, hidden, mysterious, enigmatic, arcane, inexplicable, unintelligible, inscrutable, unfathomable, indiscernible, cabbalistic, enigmatical << OPPOSITE understandable

Translations

impenetrable [ɪmˈpɛnɪtrəbl] adj [jungle, fortress] → impenetrable (= unfathomable); insondable

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impenetrable [ɪmˈpɛnɪtrəbl] adj → impénétrable

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impenetrable [ɪmˈpɛnɪtrəbl] adj → undurchdringlich (fig); unergründlich

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impenetrable [ɪmˈpɛnɪtrəbl] adj → impenetrabile