Something that is unsuccessful does not achieve what it was intended to achieve.
例句
His efforts were unsuccessful.他的努力失败了。...a second unsuccessful operation on his knee...他第二次失败的膝盖手术
ADJ-GRADED
(尤指事业上)失败的,不成功的
Someone who is unsuccessful does not achieve what they intended to achieve, especially in their career.
例句
The difference between successful and unsuccessful 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。He and his friend Boris were unsuccessful in getting a job.他和他朋友鲍里斯都没有找到工作。
英汉词典释义
adj.
不成功的;失败的
He made an unsuccessful attempt to stop the thief.他试图捉住小偷, 但未能成功。She was equally unsuccessful.她同样没有成功。
英英词典释义
Adjective
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"