a. not successful; having failed or having an unfavorable outcome
a. 不成功的
1. She was unsuccessful in her attempt to win the competition.
她在赢得比赛的尝试中没有成功。
2. The project was unsuccessful due to a lack of funding.
这个项目因为缺乏资金而没有成功。
3. He felt disappointed after his unsuccessful job interview.
他在无果的面试后感到失望。