unavailing中文什么意思

adj.
无益的，无用的，无效的。adv.
-ly

例句与用法

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1. His had first - rate qualities , and they are lost : rendered worse than unavailing
   他的儿子有头等的天赋，却荒废了，变得比没用还糟。
2. Hurstwood heard the details of the weary and unavailing search that evening
   那天晚上，赫斯渥听到了这次劳而无获的寻找的详细情况。
3. He demanded , trying , as it seemed , to see with those sightless eyes - unavailing and distressing attempt
   他问，似乎要用那双失明的眼睛来看无效而痛苦的尝试！
4. A week afterwards she came in one evening from an unavailing search for some light occupation in the immediate neighbourhood
   一个星期里，她都在附近的地方寻找一个轻松一点儿的工作，但是她没有找到。
5. Operation was performed 17 days later after invalid anticoagulant treatments and unavailing catheter fragmentation
   经过检查确定是大量肺栓塞，但是经过内科用肝素治疗，却发生血小板过低过低的副作用。

英文释义

形容词

1. producing no result or effect; "a futile effort"; "the therapy was ineffectual"; "an otiose undertaking"; "an unavailing attempt"
   同义词：futile, ineffectual, otiose