politest

S: It isn't bend only. This is the politest form of greeting in my country. We use this to show respect.

这不只是弯腰，这在我们国家是最高礼节，用以表示尊敬。

"I don't think they will be major players" is about the politest comment your correspondent heard.

“我不希望他们会成为主要竞争者。”是记者听到的最礼貌的评论。

New York the politest city in the world? Get outta here!

纽约是世界上最有礼貌的城市？别唬人了！

That's the politest description I have for them.

那是我得到的最官方的描述。