accepting things as they are in fact and not making decisions based on unlikely hopes for the future

Let's be realistic (about this) - I just can't afford to pay that much money. （在这一点上）我们还是现实一点吧——我根本就付不起那么一大笔钱。

It isn't realistic to expect people to work for so little money. 给那么点报酬还指望人们干这个工作，这是不现实的。

seeming to exist or be happening in fact

The special effects were so realistic. 那些特技镜头太逼真了。