1. in a manner that shows open resistance or bold disobedience to authority

Examples

• She crossed her arms and stared defiantly at her parents.
• The protesters marched defiantly through the streets despite the ban.
• He defiantly refused to apologize for his actions.
• The student defiantly challenged the teacher’s authority.
• She stood defiantly in front of the bulldozers.
• The rebel leader spoke defiantly against the government.
• Despite the warnings, he defiantly continued his research.