unattainable
adj. 做不到的；难到达的
例句
There are those who argue that true independent advice is unattainable.
有些人辩称无法获得真正独立的建议。
《柯林斯英汉双解大词典》
When will advertisers stop bombarding women with images of unattainable beauty?
什么时候广告客户们才会停止用不可企及的美丽形象来持续轰炸女性？
"Madam came in," she said, "as chill as an icicle, and as unattainable as a princess."
“夫人走进来了，”她说，“像个冰柱似的冷冰冰，又像个公主似的高不可攀。”
