impractical

英 [ɪm'præktɪk(ə)l] 美[ɪm'præktɪkl]

• adj. 不切实际的，不现实的；不能实行的

1. not practical; not workable or not given to practical matters;

"refloating the ship proved impractical because of the expense"

"he is intelligent but too impractical for commercial work"

2. not practical or realizable; speculative;

"airy theories about socioeconomic improvement"

"visionary schemes for getting rich"