relaxed

v. 放松(缓和,松懈)
a. 松懈的

An informal gathering of friends; a relaxed, informal manner.

朋友们的非正式聚会；一种放松的、随便的方式

She's a bit too knowing for me to feel relaxed with her.

她很有点世故, 和她相处我觉得不自在.