Word: 镇定 (zhèndìng) Traditional: 鎮定 镇定 dictionary entry zhèndìng calm; unperturbed; cool Full dictionary entry for 镇定 Example sentences using 镇定 2 sentences, showing page 1 of 1. 她镇定地回答了所有问题。 Tā zhèndeng de huídále suǒyǒu wèntí. She answered all the questions unperturbed. 着火了，大家请保持镇定！ Zháohuǒle, dàjiā qǐng bǎochí zhèndìng! There's a fire, everyone please stay calm!