1. Thickness of consistency; impenetrability. 比尔的言行不一致。
2. So matter has the property of impenetrability. 所以物质具有不可穿透的特性。
3. The complexity of the society originates from the contingency, ambiguousness and impenetrability of human consciousness and from the "double contingency"in the communication. 社会过程的复杂性源于社会交往中人类个体意识的随意性、模糊性和封闭性以及由此产生的交往过程的“双重偶然性”。