Insurrectionist (noun)

A person who participates in an insurrection, especially one who rises in rebellion against a government.

Origin:

Late 16th century, from latin insurrectiō + -ist.

Examples:

1. The insurrectionist attempted to overthrow the government.
2. The government was able to capture the ringleaders of the insurrectionist group.
3. The authorities labeled him as the chief insurrectionist and arrested him.
4. The insurrectionist movement was suppressed by the military.
5. The insurrectionist was tried and sentenced to life in prison.