~ (in doing sth)(formal) slow to act, move or happen; late in happening or arriving 行动缓慢的；拖拉的；迟缓的；迟到的
The law is often tardy in reacting to changing attitudes.
法律对变化中的观念常常反应迟缓。
people who are tardy in paying their bills
拖延付账的人
(NAmE)
to be tardy for school
上学迟到