fǎnzhèng 反正 means regardless of the condition, the result will be the same or remain unchanged. For example,
无论你喜欢还是不喜欢上学，你都不得不去
Wúlùn nǐ xǐhuan háishì bùxǐhuan shàngxué， nǐ dōu bùdébù qù
No matter if you like or don’t like go to school you all have to go
‘You have to go to school no matter if you like it or not.’
