In a manner opposing rebellion or armed uprising against authority.
From anti- + insurrectional (relating to insurrection, from Latin insurgere to rise up). The adverbial -ally suffix indicates action performed against rebellions.
This word was used during 19th and 20th-century political discussions about government responses to uprisings—the Insurrection Act of 1807 still governs when U.S. presidents can deploy military against domestic rebellion.
Complete word intelligence in one call. Free tier — 50 lookups/day.