浩繁

1. • vast
2. • voluminous
3. • many and varied
4. • numerous
5. • extensive amount of
6. • exhaustive
7. • heavy (expenditure)
8. • arduous
9. • strenuous
10. • exhausting
11. • draining
12. • burdensome

Character by character

• 浩(hào)grand
• 繁(fán)complicated