ADJ-GRADED
不切实际的;不现实的;不可行的
If you describe an object, idea, or course of action as impractical, you mean that it is not sensible or realistic, and does not work well in practice.
例句
When stalking subjects, a tripod is impractical...
潜步跟踪目标时,用三脚架是不切实际的。
It became impractical to make a business trip by ocean liner.
乘坐远洋班轮进行商务旅行变得不合时宜了。