1. 现实的;务实的;实事求是的
    If you are realistic about a situation, you recognize and accept its true nature and try to deal with it in a practical way.

realistic的反义词

    e.g. Police have to be realistic about violent crime...
           警方需要对暴力犯罪持务实态度。
    e.g. It's only realistic to acknowledge that something, some time, will go wrong.
           只有承认有些事情在某些时候会出问题才是现实的。

2. （目标或目的等）现实的，明智的，能实现的
    Something such as a goal or target that is realistic is one which you can sensibly expect to achieve.

realistic的意思

    e.g. Multi-party elections are scheduled for sometime next year but many doubt that this is a realistic goal...
           多党选举计划在明年某个时间进行，但是许多人怀疑这个目标是否现实。
    e.g. A more realistic figure is eleven million...
           更加实际一点的数字是1,100万。

3. （绘画、小说或电影）现实主义风格的，写实的，逼真的
    You say that a painting, story, or film is realistic when the people and things in it are like people and things in real life.

    e.g. ...extraordinarily realistic paintings of Indians...
           关于印第安人的极为逼真的绘画
    e.g. The language is foul and the violence horribly realistic.
           语言污秽，暴力场面非常写实。