infeasibility

The security of encryption algorithms depends heavily on computational infeasibility of brute force attack.

加密算法的安全性在很大程度上取决于暴力破解的不可行性.

——期刊摘选

This system failed due to the lack, if not infeasibility, of enforcement.

这一体制由于缺乏实施措施或可行性而搁浅.

英汉非文学 - 环境法 - 环境法