形容詞 complimentary:

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

1. Not complimentary; derogatory.
   非贊美性的; 貶抑的
2. No, I'm going to see a Chinese opera. Billy gave me a complimentary ticket yesterday.
   不，我要去看一出國劇，比利昨天給我一張招待券。
3. A concert that received complimentary reviews.
   這場音樂會得到了輿論的好評
4. Don't be fooled by all his complimentary remarks they were all said with tongue in cheek.
   別讓他的恭維話給糊弄住--那些話可當(dāng)不得真。

com.pli.men.ta.ry

adj.（形容詞）
Expressing, using, or resembling a compliment:
表達(dá)、運用或類似贊美方式的：
例句：
a concert that received complimentary reviews.
這場音樂會得到了輿論的好評

Given free to repay a favor or as an act of courtesy:
贈送的：表示優(yōu)惠或客氣而免費贈送的：
例句：
complimentary copies of the new book.
新書的贈送本

【引伸】
com.plimen.tarily
adv.（副詞）