undesirability

1. In the past, evolutionary biologists contemplating the absence of wheels in nature agreed that the explanation was not undesirability: wheels would be good for animals, just as they are for us.
   进化与轮子从前，研究自然界没有轮子的进化论生物学家都同意不能用无此需要来解释这种现象：轮子对于动物会像对于我们人类一样有好处。
2. As the desire-cutting carrier, there hides many undesirability and helplessness behind the interlaced neon lights and shades.
   作为欲望交织的载体，在霓虹光影的背后同样隐藏着不少的不堪和无奈，城市丰满的血肉展露无疑。
3. But we have already discussed the undesirability of this assimilation.
   但我们已经讨论过，这种同化是不可欲的。

noun

1. the quality possessed by something that should be avoided