1. not reacting or responding to something
2. not conscious or able to respond, especially due to illness or injury
Usage: medical

Examples

• The patient remained unresponsive to treatment.
• She was unresponsive to his attempts at conversation.
• The government has been unresponsive to citizens’ concerns.
• After the accident, he was found unresponsive at the scene.
• The computer became unresponsive and needed to be restarted.
• The audience was unresponsive to the comedian’s jokes.
• Emergency responders found the victim unresponsive but breathing.