complimentary

形容词 complimentary:

1. conveying or resembling a compliment
2. costing nothing
   同义词：costless, free, gratis, gratuitous

1. Not complimentary; derogatory.
   非赞美性的; 贬抑的
2. No, I'm going to see a Chinese opera. Billy gave me a complimentary ticket yesterday.
   不，我要去看一出国剧，比利昨天给我一张招待券。
3. A concert that received complimentary reviews.
   这场音乐会得到了舆论的好评
4. Don't be fooled by all his complimentary remarks they were all said with tongue in cheek.
   别让他的恭维话给糊弄住--那些话可当不得真。

com.pli.men.ta.ry

adj.（形容词）
Expressing, using, or resembling a compliment:
表达、运用或类似赞美方式的：
例句：
a concert that received complimentary reviews.
这场音乐会得到了舆论的好评

Given free to repay a favor or as an act of courtesy:
赠送的：表示优惠或客气而免费赠送的：
例句：
complimentary copies of the new book.
新书的赠送本

【引伸】
com.plimen.tarily
adv.（副词）