← 単語を見るに戻るimpenetrableadjective#18,822訳語奥の深いおくのふかい英語の定義not admitting of penetration or passage into or through例文Tom stared into the impenetrable blackness of the night sky.似ている単語impenetrablypenetrableimpeccableimpermeableimpeachableimperishable← springerunderdog →