1. a person who causes romantic disappointment or emotional pain to others
Usage: informal
2. something that causes great disappointment or sadness
Usage: informal

Examples

• Everyone warned me that Jake was a heartbreaker.
• She had a reputation as a heartbreaker in high school.
• Losing the championship game was a real heartbreaker.
• The team’s defeat in the final seconds was a heartbreaker.
• He’s such a heartbreaker with those charming looks.
• Missing the scholarship by one point was a heartbreaker.
• The movie’s sad ending was a real heartbreaker.