staid
adjective uk/steɪd/ us/steɪd/
严肃无趣的;一本正经的;古板的
serious, boring, and slightly old-fashioned
In an attempt to change its staid image, the newspaper has created a new section aimed at younger readers. 那家报纸为改变其古板的形象，开设了一个针对年轻读者的新版面。
Synonym: sedate