beyond one's wildest dreams

Prepositional phrase

1. (idiomatic) Much better than one could ever expect.
   • At the same time, the Count de B—— very philanthropically hired an old discolored-looking horse, which was grazing peaceably outside the hut, and mounting the astonished quadruped, who had never, in his wildest dreams, calculated upon having so fine a chevalier on his back, galloped off in search...1843, Calderón de la Barca, Life in Mexico