adjective, brain·i·er, brain·i·est. Informal.
Origin of brainy
Examples from the Web for brainy
After still one more failed engagement, Day married Esther Milnes, a brainy heiress who was utterly enchanted with his ideas.
They posted sensationalistic stories online, with headlines like “Brainy Ex-Model Suing Google.”Busting a Cyberstalker: How Carla Franklin Fought Back—and Triumphed|Abigail Pesta|October 12, 2012|DAILY BEAST
This will rightfully be marketed as a thriller, but it belongs among the brainy examples of the genre, like those by Robert Stone.
“I was the Hermione,” she said, referring to the brainy Harry Potter character.John Friend Anusara Scandal: Inside the Wiccan ‘Sex’ Coven|Lizzie Crocker|April 16, 2012|DAILY BEAST
Beautiful, brainy, and bossy—on the surface, Gu Kailai was a new breed of Politburo wife.China’s Jackie Kennedy: Gu Kailai and the Bo Xilai’s Scandal|Melinda Liu|April 12, 2012|DAILY BEAST
Such vigorous and brainy men do not escape the attention of the people.
They were picked for endurance, and the brainy will often crack up under a strain that the enduring kind hardly notices.Eight Keys to Eden|Mark Irvin Clifton
He is the brainy exception of craft united to common sense, and he uses these to best advantage for his own interests.The Fiery Totem|Argyll Saxby
He was a student, and was brainy and generous, and laughed at "able articles" even if they had stings in them.
He took an emphatic liking to the not too brainy colonel, and a new disrelish to his almost too sparkling wife.John March, Southerner|George W. Cable