Word: 投机 (tóujī) Traditional: 投機 投机 dictionary entry tóujī congenial; to speculate Full dictionary entry for 投机 Example sentences using 投机 2 sentences, showing page 1 of 1. 新来的同事和我很投机。 Xīn lái de tóngshì hé wǒ hěn tóujī. The new colleague and I really hit it off. 靠投机赚钱，风险非常大。 Kào tóujī zhuànqián, fēngxiǎn fēicháng dà. Making money by speculating is very risky.