mid-15c., from Middle French impenetrable, from Latin impenetrabilis "that cannot be penetrated," from assimilated form of in- "not, opposite of" (see in- (1)) + penetrabilis "penetrable" (see penetrate). Related: Impenetrably; impenetrability.
实用例句
1. Their jargon is impenetrable to an outsider.
他们的行话外人听不懂。
来自《权威词典》
2. I find his style somewhat impenetrable.
我发现他的行为方式令人颇为费解.
来自《简明英汉词典》
3. The language of this document would be impenetrable to anyone except a specialist.
除了专家,其他任何人都看不懂这份文件.
来自《简明英汉词典》
4. His books are notoriously impenetrable.
他的书出了名的晦涩难懂。
来自辞典例句
5. Still, I had also judged the jungle of both banks quite impenetrable.
