optimisticKK [ˏɑptəˋmɪstɪk] /ˌɑptəˈmɪstɪk/形容詞1樂觀的、看好的She remains optimistic about finding a job before summer.她對在夏天前找到工作仍然很樂觀。2樂天的、凡事看好的He has an optimistic personality that lifts everyone's mood.他個性樂天,能讓大家的心情變好。3過於樂觀的、太理想化的Three days to finish the whole report seems a little optimistic.三天內寫完整份報告好像有點太樂觀了。