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.

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