pastdue
adjectiveUK /ˌpɑːstˈdjuː/
US /ˌpæstˈduː/
Something pastdue is late and should have been done already.
The library book is pastdue, so I need to return it today.
OTHER MEANINGS
2. Not paid by the time it was supposed to be paid.
The rent is pastdue, so the landlord sent a warning.
3. Happening or arriving later than expected.
Her pastdue train finally arrived an hour late.
4. No longer allowed because the time limit has ended.
The pastdue homework cannot be turned in for full credit.