1. 不能开采的;不能实行的;难处理的：unworkable deposit 无开采价值的矿床 | unworkable 不能开采的;不能实行的;难处理的 | unworked 未开采的

2. 难以使用的：unwind 展开 | unworkable 难以使用的 | unworn 未磨损的

3. 难运转的：难语症dyslexiadysphrasia | 难运转的unworkable | 难战胜地invincibly

4. 不能实行的：unworkable 难运转的 | unworkable 不能实行的 | unworldly 与尘世脱离的

1. 不可行的；行不通的；办不成的
    If you describe something such as a plan, law, or system as unworkable, you believe that it cannot be successful.

    e.g. There is the strong possibility that such cooperation will prove unworkable...
           这种合作很有可能会行不通。
    e.g. Washington is unhappy with the peace plan which it views as unworkable.
           美国政府对和平计划不满，认为它不可行。

adj

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: impracticableinfeasibleunfeasible