1. not successful; having failed or having an unfavorable outcome

2. failing to accomplish an intended result;

   "an abortive revolt"
   "a stillborn plot to assassinate the President"
   

1.不成功的；落空的；失败的
Something that isunsuccessful does not achieve what it was intended to achieve.

e.g. His efforts wereunsuccessful.
他的努力失败了。
e.g. ...a secondunsuccessful operation on his knee...
他第二次失败的膝盖手术

2.（尤指事业上）失败的，不成功的
Someone who isunsuccessful does not achieve what they intended to achieve, especially in their career.

e.g. The difference between successful andunsuccessful people is that successful people put into practice the things they learn...
成功者与失败者的区别在于成功者能够学以致用。
e.g. He and his friend Boris wereunsuccessful in getting a job.
他和他朋友鲍里斯都没有找到工作。

1. 不成功的：unnecessary 不必要的 |unsuccessful 不成功的 | unfold 展开

2. 不成功的,失败的：unsigned ;无符号的 |unsuccessful ;不成功的/失败的 | until ;prep ;到 ; ;为止/直到

3. 失败：Up 向上 |unsuccessful 失败 | Vibrate 振动