not successful; having failed or having an unfavorable outcome
failing to accomplish an intended result;
"an abortive revolt"
"a stillborn plot to assassinate the President"
- My early attempts at learning to drive were unsuccessful.
- He was discouraged by the unsuccessful attempt.
- The unsuccessful candidate demanded a re-count.
- After a series of unsuccessful attempts, he has finally passed the driving test.
- abortive 失败的
- fruitless 不成功的
- unfortunate 不幸的
- failing 失败
- vain 自负的
- futile 无效的
- ineffectual （东西）无效的...
- ineffective 无效的
- failed 失败的
- unproductive 不生产的
- disastrous 灾难性的
- stillborn 死产的
- successful 成功的