stubborn He's too stubborn to apologize -u-She's as stubborn as a mule The reform policy met some stubborn resistance Stubborn stains(污迹) can be removed using a small amount of this soap powder.stubborn • ----He's too stubborn to apologize. • ----She's as stubborn as a mule. • ---The reform policy met some stubborn resistance. • ----Stubborn stains (污迹) can be removed using a small amount of this soap powder