1. in a way that shows unwillingness to change one’s mind or be persuaded

Examples

• She adamantly refused to apologize for her actions.
• The mayor adamantly opposed the new tax proposal.
• He adamantly denied any involvement in the scandal.
• The teacher adamantly insisted that all homework be completed on time.
• Despite pressure from her family, she adamantly maintained her decision.
• The company adamantly defended its environmental policies.