overdue
adjective uk/ˌəʊ.vəˈdʒuː/ us/ˌoʊ.vɚˈduː/
过期的；延误的；迟的
not done or happening when expected or when needed; late
My library books are a week overdue. 我借图书馆的书过期一个星期了。
The baby is two weeks overdue (= the baby was expected to be born two weeks ago). 预产期已经过两周了。
Changes to the tax system are long overdue. 税收制度早该改革了。
She feels she's overdue for promotion. 她觉得她早该被提升了。
Synonym: late (AFTER EXPECTED TIME)
Compare: delinquent adjective