Stun/stʌn/ Definition 1 of 3Pro Tip 1/3Extreme Shock Use 'stun' when someone is so shocked they temporarily cannot respond. The magician's trick stunned the audience into silence. Pro Tip 2/3Unexpected Events Often used when an event is unexpected, causing a strong surprise. News of the unexplained phenomenon left the town stunned. Pro Tip 3/3Emotional Impact Suggests a deep emotional impact more than simple surprise. She was stunned by the outpouring of support from her community.