impenetrable   (Sound)

The impenetrable has 3 Senses.

• impenetrable
• not admitting of penetration or passage into or through; "an impenetrable fortress"; "impenetrable rain forests"
• 浸透または通過を認めないさま

• impenetrable, heavy, dense
• 濃い, 深い, 重たい, 厚い
• permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog"; "impenetrable gloom"
• 物の密度が濃いために、もしあったとしても、どんな光も通り抜けさせない

• impenetrable
• impossible to understand; "impenetrable jargon"
• 理解するのが不可能な