unsuccessful /ˌʌnsəkˈsɛsfəl/ adjective /ˌʌnsəkˈsɛsfəl/
adjective
Learner's definition of UNSUCCESSFUL
[more unsuccessful; most unsuccessful]
: not having or producing success : not successful不成功的；失败的 -
The operation was unsuccessful.那次手术失败了。
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an unsuccessful musician不成功的音乐人
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His last novel was unsuccessful.他的上一部小说不算成功。
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an unsuccessful attempt失败的尝试