to refuse to obey or to do something in the usual or expected way
The students got into trouble for defying their teacher’s rules.
The rebellious teenager chose to defy his parents' curfew and stayed out late.
The protestors gathered to defy the government's orders and demand their rights.
Despite warnings, she decided to defy the safety regulations and enter the restricted area.
The athlete's determination to overcome the odds seemed to defy the limitations of the human body.
