1. people who actively oppose war and advocate for peace, especially those involved in anti-war protests
Usage: informal; sometimes derogatory

Examples

• The peaceniks gathered in the park to protest the military intervention.
• During the Vietnam War, peaceniks organized massive demonstrations.
• Critics dismissed them as naive peaceniks who didn’t understand foreign policy.
• The peaceniks carried signs calling for an end to all conflicts.
• Many peaceniks from the 1960s continued their activism for decades.
• The politician tried to appeal to both hawks and peaceniks in his speech.