1. causing physical harm or injury to something
2. having a negative effect on someone’s reputation, prospects, or well-being

Examples

• The storm caused damaging winds that knocked down power lines.
• Smoking is damaging to your health.
• The scandal was damaging to the politician’s career.
• UV rays can be damaging to your skin without sunscreen.
• The leaked documents contained damaging information about the company.
• Excessive heat is damaging to electronic devices.
• The negative reviews were damaging to the restaurant’s reputation.