Blindside
WordNet
verb
(1) Attack or hit on or from the side where the attacked person's view is obstructed
(2) Catch unawares, especially with harmful consequences
"The economic downturn blindsided many investors"
WiktionaryText
Noun
- A driver's field of blindness around an automobile; the side areas behind the driver.
- the space on the side of the pitch with the shorter distance between the breakdown/set piece and the touchline; compare openside.
- (rugby union) short for blindside flanker, a position in rugby union, usually number 6.
- The blindside [flanker] packs down at the scrum on the blindside.