1. refusing to obey rules, laws, or authority; defiant
2. participating in or supporting a rebellion against established government or authority

Examples

• The rebellious teenager refused to follow her parents’ curfew.
• His rebellious attitude got him suspended from school.
• The rebellious forces fought against the dictator’s regime.
• She had a rebellious streak that made her question everything.
• The rebellious students organized protests against the new policies.
• His rebellious nature led him to challenge traditional ideas.
• The rebellious army attempted to overthrow the government.