[ blahynd-sahyd ]
/ ˈblaɪndˌsaɪd /

verb (used with object), blind·sid·ed, blind·sid·ing.

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.
Informal. to attack critically where a person is vulnerable, uninformed, etc.: The president was blindsided by the press on the latest tax bill.

Origin of blindside

First recorded in 1970–75; v. use of noun phrase blind side Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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