obstinate
US /ˈɑːb.stə.nət/
UK /ˈɑːb.stə.nət/

1.
hartnäckig, stur
stubbornly refusing to change one's opinion or chosen course of action, despite attempts to persuade one to do so
:
•
He was obstinate in his refusal to admit he was wrong.
Er war hartnäckig in seiner Weigerung zuzugeben, dass er falsch lag.
•
The child was obstinate and refused to eat his vegetables.
Das Kind war hartnäckig und weigerte sich, sein Gemüse zu essen.