in a way that is likely to result in success, or that shows signs of success

The new museum was propitiously timed to open at the start of the summer holidays. 这个新博物馆（特意）选了吉时在暑假开始的时候开馆。

Transformation of the town had not begun propitiously. 这个镇的转型开始得（并）不顺利。