obduration in a sentence

Definition

Obduration: stubbornness or unyielding persistence in the face of opposition or criticism.

Her obduration in the face of criticism left her colleagues bewildered.
Despite the mounting evidence against him, his obduration only deepened his resolve.
The teacher noted the student's obduration when it came to accepting constructive feedback.
Even after the heartfelt plea from her friends, her obduration made reconciliation impossible.
His obduration toward changing his outdated views was frustrating for those around him.