Other definitions for blind side 2 of 2nounthe part of one's field of vision, as to the side and rear, where one is unable to see approaching side opposite that toward which a person is of blind side2First recorded in 1600– Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023How to use blindside in a sentenceAbout 1,200 faculty participated in the anonymous survey, and their responses revealed a culture in which professors say they are blindsided by major decisions.“Honestly, it was a stab in the back,” said one Republican aide of the rebuke from Delta, which “blindsided” Kemp and task force was blindsided, according to people familiar with the views of its office has asked prominent state Democratic lawmakers not to blindside them with calls for resignation, a person familiar with the request said, speaking on the condition of anonymity to discuss private sounding blindsided, called the NBA’s pursuit of an All-Star Game in Atlanta a “slap in the face” after previous plans for Indianapolis were Karabell says our complacency will blindside us, just as it did when Lehman Brothers Dictionary definitions for blind sidenounrugby the side of the field between the scrum and the nearer touchlinethe side on which a person's vision is obscuredverbblind-sidetr US to take someone by surpriseCollins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012Other Idioms and Phrases with blindsidesee under blind American Heritage Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.