unfeasible

音標(biāo)發(fā)音

But the aerodynamic efficiency is disproportionate, so a scaled-down helicopter has stability issues and is unfeasible.
“真實(shí)尺寸的直升機(jī)有著很高的空氣動(dòng)力效率,” 烏爾里奇，一個(gè)博士候選人，告訴 PhysOrg.com. “但是空氣動(dòng)力效率是不相稱的，所以比例縮小的直升機(jī)有著穩(wěn)定方面的問題，并且不可行。
This is inconvenient enough for patients in the rich world, says Mr Gates, but in developing countries it is often unfeasible.
在發(fā)達(dá)國(guó)家，這對(duì)于患者而言已經(jīng)非常麻煩了，蓋茨稱，而在發(fā)展中國(guó)家，這幾乎是不可行的。
Of course, working with the output of the generation of all possible permutations of test inputs could quickly become unfeasible (depending on the application under test).
當(dāng)然，處理測(cè)試輸入的所有可能的全排列輸出很快就行不通了（依據(jù)在測(cè)的應(yīng)用程序）。

NIMA. So the notion that commercial satellites would make image censorship unfeasible has not proved correct.
ECONOMIST: Commercial satellites have military uses, too
But it does mean that business as usual is increasingly unfeasible with each passing day.
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Lanni insisted that there not be a mall, but having shopping outside in 110-degree heat was unfeasible.
FORBES: Magazine Article

If you say that something is unfeasible, you mean that you do not think it can be done, made, or achieved.