abortive
adjective formal uk/əˈbɔː.tɪv/ us/əˈbɔːr.t̬ɪv/
失败的；夭折的；无结果的
An abortive attempt or plan has to be stopped because it has failed.
He made two abortive attempts on the French throne. 他两次企图登上法国王位，结果都以失败告终。
Synonyms: stillbornunsuccessful