lightheartedness

lightheartedness

noun

the cheerful feeling you have when nothing is troubling you: Synonym: carefreeness insouciance lightsomeness

数据来源：WordNet

1

This apparent lightheartedness does not conceal the real contempt that many men feel for women .

可这表面现象却无法掩饰许多男人对女性所抱的鄙视态度。
2

It is peace and gentleness and lightheartedness .

幸福是一种平和，柔顺和无忧无虑的状态。
3

But research shows that bursts of lightheartedness , whether from a smile shared with a colleague or a funny clip on YouTube , actually cause people to think more clearly and creatively .

但是研究发现，无论是和同事说笑，还是在YouTube上看到一个搞笑视频，不时的轻松情绪都会让人更加清醒和有创造力。