How did Unoka affect Okonkwo?

His father Unoka was a lazy debtor, a poor farmer, a coward in war, and an agbala, a man who has taken no titles. Children make fun of him for being an agbala. He is a huge debtor because of his drinking debts, and will never pay back the money. He can barely afford to support his family, and yet when he borrows money he almost immediately spends it on wine. Instead of working hard to succeed, he wastes his time playing the Flute. People from the village looked down upon him, and Okonkwo felt ashamed by proxy.

Okonkwo tries to rise from this inferiority complex by becoming everything his father is not.

Finally, at the end of his days, Unoka is afflicted with swelling of the limbs and is carried to the Evil Forest to die instead of being given a burial.