Idiom with the same meaning as carefree.

1, calm: treat as usual, don't care, describe not caring in the face of difficulties, and feel calm;

2. Take things as they are: it means indifference to abnormal phenomena or unsatisfactory situations;

3, seclusion: no disputes with people in society;

4. Harmony with the world: don't argue with people in society;

5. Take things as they are: it means being able to adapt to the environment and be satisfied under any circumstances;

6, when in Rome, do as the Romans do: I don't have a certain idea, follow the trend;

7. Flexibility: Flexibility and straightforwardness generally mean that people can adapt to various situations, endure setbacks and display their ambitions when they succeed.

Happy-go-lucky: refers to being able to adapt to the environment and be satisfied under any circumstances, but also has the intention of sticking to the rules and not daring to change.

Source: From Chapter 77 of Three Heroes and Five Righteousness in Qing Dynasty.