: wildly odd or eccentric
His life was crowded, rather than peacefully isolated, and certainly never of an Olympian detachment, even though he was capable of quite deranged gestures of show-offy extravagance—such as buying an enormous house, more suitable for a banker than a painter …—Robert Hughes Or you could take part in a deranged computer game where you had to cycle after a huge beach ball, scoop it up and throw it through a hoop, scoring points for each goal.—Natasha Ellis
: disturbed or disordered in function, structure, or condition
My leg was propped up on a library chair at the time, as it was too deranged to bend.—Cynthia Gorney But other work indicates that, in addition, the B lymphocytes of lupus patients are inherently deranged …—Moncef Zouali
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!