pigheaded
US /ˈpɪɡ.hed.ɪd/
UK /ˈpɪɡ.hed.ɪd/

1.
testarudo, obstinado
stubbornly or perversely self-willed
:
•
He's too pigheaded to admit he was wrong.
Es demasiado testarudo para admitir que se equivocó.
•
Her pigheaded refusal to compromise made negotiations difficult.
Su testaruda negativa a ceder dificultó las negociaciones.