impenetrably


im·pen·e·tra·ble

I0056100 (ĭm-pĕn′ĭ-trə-bəl)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.
im·pen′e·tra·ble·ness n.im·pen′e·tra·bly adv.
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