infeasible

Building a bridge across the canyon in one month is infeasible.

用法提示：句中infeasible作表语，表示‘不可实行’，修饰主语to build a bridge。

The committee deemed the proposed plan infeasible due to budget constraints.

用法提示：句中infeasible作宾语补足语，描述the proposed plan的状态。

It would be infeasible to finish the project without additional funding.

用法提示：句中infeasible作表语，用于形式主语it结构中。