insurgent
in-sur-gent
adjective
Engaging in or relating to a rebellion against established authority or a government.
"Insurgent forces launched a surprise attack."
noun
A person who takes part in a rebellion against a government or authority.
"The government battled the armed insurgents."
Thesaurus
Synonyms: rebel, freedom fighter, insurrectionist, guerrilla, guerilla, irregular, seditious, disloyal, subversive