Part of speech: Adjective (satellite)
showing unfeeling resistance to tender feelings
Example: his flinty gaze; the child's misery would move even the most obdurate heart
Part of speech: Adjective (satellite)
stubbornly persistent in wrongdoing
The word "obdurate" comes from Latin obduratus.
durable – A related word in the same word family.
endure – A related word in the same word family.
Roman military conquests permanently planted Latin vocabulary across three continents.