ALL meanings of blind-sided
blind-sid·ed
B b - verb with object blind-sided Sports. to tackle, hit, or attack (an opponent) from the blind side: The quarterback was blindsided and had the ball knocked out of his hand. 1
- verb with object blind-sided Informal. to attack critically where a person is vulnerable, uninformed, etc.: The president was blindsided by the press on the latest tax bill. 1