optimistic汉语翻译：
a. 乐观的, 乐观主义的, 乐天的词意辨析：
optimistic, hopeful这两个形容词均可表示“充满希望的，乐观的”之意。
optimistic: 指性格乐观，对未来充满希望，有时抱有不切实际的幻想。
hopeful: 着重有根据的希望，充满自信。英语解释：
形容词 optimistic:

expecting the best in this best of all possible worlds

expecting the best同义词：affirmative

The book ended on an optimistic note.该书的结尾寓意乐观。

She was always optimistic, even when things were at their worst.她即使在最糟糕的时候也总是非常乐观。

I am very optimistic.我很乐观。

The stockholders are optimistic about the company's future.股东对公司的前景很乐观。

We are still optimistic, whatever the result (may be).我们仍然乐观，不论结果如何。

A person regarded as being foolishly or blindly optimistic.过分乐观者，盲目乐观者被视为愚蠢地或盲目地乐观的人

乐观的英文