孜孜不倦
zīzī-bújuàn
diligent and tireless
Every meaning
zīzī-bùjuàn
- diligent and tireless
Its characters
- 孜zīdiligent; hardworking (as in 孜孜)
- 不bùnot; no
- 倦juàntired; weary
Words with 孜
Words with 不
Meanings from our own dictionary. Chengyu from the Xinhua idiom list, the most common first.