insurgent insurgent /ˌɪnˈsɝːdʒənt/

adjective

1. In opposition to a civil authority or government  ( insurgent , seditious , subversive )
   in opposition to a civil authority or government
   

noun

1. A member of an irregular armed force that fights a stronger force by sabotage and harassment  ( guerilla , insurgent , irregular , guerrilla )
   a member of an irregular armed force that fights a stronger force by sabotage and harassment
     The guerrilla fighters launched surprise attacks against the occupying forces.
   The guerrilla fighters launched surprise attacks against the occupying forces.
   
   
2. A person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)  ( freedom fighter , insurgent , insurrectionist , rebel )
   a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)
     The rebellious teenager defied authority and questioned societal norms.
   The rebellious teenager defied authority and questioned societal norms.