unstubborn
/ˌʌnˈstʌbərn/Definitions
1. adjective
not stubborn; not obstinately refusing to change one’s opinion or course of action
“She was unstubborn and willing to listen to her sister’s advice.”
2. noun
a person who is not stubborn; someone who is willing to change their opinion or course of action
“He’s an unstubborn person who always listens to others.”