- Opposed to war or military conflict.
- Favoring peace and the avoidance of war.
Mid 20th century: from anti- + war.
- The antiwar movement organized protests against the military action.
- The antiwar sentiment was strong among the public.
- The antiwar activist spoke out against the government's policies.
- The antiwar film depicted the devastating impact of war on innocent civilians.
- The antiwar demonstration attracted thousands of people who wanted to show their opposition to the war.