1. to hit or attack someone from their blind side or when they are not expecting it
2. to catch someone completely off guard with unexpected news or events

1. the side where a person has limited or no vision
2. an unexpected attack or surprise

Examples

• The linebacker blindsided the quarterback with a hard tackle.
• The company blindsided employees with sudden layoffs.
• She was completely blindsided by the breakup.
• The defender came from his blindside.
• The news of the merger was a total blindside.
• He approached from her blindside so she didn’t see him coming.
• The criticism blindsided the politician during the debate.