1 accustomed to sth if you are accustomed to sth, you are used to it and it is not strange for you 习惯于: She's accustomed to travelling a lot in her job. 因为工作需要常常出差，她已经习惯了。It took a while for my eyes to get accustomed to the dark room. 过了一会儿我的眼睛才适应那暗室。

2 (formal 正式) usual; regular 通常的；经常的；惯常的