1. 不能实行的：unfearing 大无畏的 | unfeasible 不能实行的 | unfeatured 无特征的

2. 不可行的：unethical 不道德的 | unfeasible 不可行的 | unfeeling 冷漠的

3. 不能实行：unfeasibility /非可行性/ | unfeasible /不能实行/ | unfed /未加燃料的/

4. 难以实施的：penalty 处罚 | unfeasible 难以实施的 | misuse 误用

1. 不可行的；难以实施的
    If you say that something is unfeasible, you mean that you do not think it can be done, made, or achieved.

unfeasible什么意思

    e.g. The weather made it unfeasible to be outdoors...
           这样的天气不能出门。
    e.g. The board said the idea was unfeasible.
           董事会认为这个提议不可行。

1. not capable of being carried out or put into practice

    e.g. refloating the sunken ship proved impracticable because of its fragility
           a suggested reform that was unfeasible in the prevailing circumstances

    Synonym: impracticableinfeasibleunworkable