was Unoka a bad father to okwonkwo

He was considered a weak father. He wasn't a masculine role model for Okonkwo. He represented the worst in a father figure. He was lazy, broke...Ironically his father's memory might have motivated Okonkwo to be the hyper masculine persona that he created.

yes , he was. he was a lazy father who had a lot of dept and every man in the tribe hated him because he never returned their money.