adj determined not to change your mind, even when people think you are being unreasonable
Why are you so stubborn? I've got a very stubborn streak (=a tendency to be stubborn) . Paul can be as stubborn as a mule (=very stubborn) . stubborn resistance/refusal/determination etca very strong and determined refusal etc
a stubborn refusal to face realitydifficult to remove, deal with, or use
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tough stubborn stains>stubbornly adv 'I don't care,' she said stubbornly.>stubbornness n [U]