impenetrable

impenetrable has 6 senses in the JumbleFix dictionary. Letters: 12.

Definitions

• a.. Incapable of being penetrated or pierced; not admitting the passage of other bodies; not to be entered; impervious; as, an impenetrable shield.
• a.. Having the property of preventing any other substance from occupying the same space at the same time.
• a.. Inaccessible, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or heart.
• a.. impossible to understand; "impenetrable jargon"
• a.. not admitting of penetration or passage into or through; "an impenetrable fortress"; "impenetrable rain forests"
• a.. permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog"; "impenetrable gloom"