I. -jənt noun
Etymology: Latin insurgent-, insurgens, present participle of insurgere to rise up, from in- + surgere to rise — more at surge
Date: 1765
1. : a person who revolts against civil authority or an established government ; especially : a rebel not recognized as a belligerent
2. : one who acts contrary to the policies and decisions of one's own political party
II. adjective
Date: 1807
: rising in opposition to civil authority or established leadership : rebellious
• in·sur·gent·ly adverb