相关单词近義詞 inadequately 不夠地, hopelessly 絕望地, ineptly 不適儅地, pathetically 悲哀地, incompetently 無能力地, inefficiently 無傚率地, ineffectually 無傚地, in vain 徒然, unsuccessfully 失敗地反義詞usefully, 有用地臨近詞useless, useless luxury, useless to try, useless effort, useless current, useless plastic, useless without, useless student, useless arguing, useless quality, Useless learning 返回 uselessly