blind side: Meaning and Definition of

blind' side"

1. the part of one's field of vision, as to the side and rear, where one is unable to see approaching objects.
2. the side opposite that toward which a person is looking.

blind•side

1. to tackle, hit, or attack (an opponent) from the blind side: The quarterback was blindsided and had the ball knocked out of his hand.
2. to attack critically where a person is vulnerable, uninformed, etc.: The president was blindsided by the press on the latest tax bill.