insane

adj

1. Exhibiting unsoundness or disorder of mind; not sane; utterly mad.

   “And you told me not to drive But I made it home alive So you said that only proves that I'm insane”

2. Used by or relating to insane people.

   “an insane hospital”

   “an insane asylum”

3. Causing insanity or madness.

   “Were such things here, as we doe speake about? / Or haue we eaten on the insane Root, / That takes the Reason Prisoner?”

4. (informal)Characterized by excess or the utmost folly; ridiculous; impractical.

   “an insane plan”

   “an insane amount of money”

   “The preposterous altruism too![…]Resist not evil. It is an insane immolation of self—as bad intrinsically as fakirs stabbing themselves or anchorites warping their spines in caves scarcely large enough for a fair-sized dog.”

   “Yenshui is a fairly ordinary town situated between Tainan and Chiayi. However, during the Lantern Festival, on the 15th day of the first moon, the whole town goes insane.”

   “And what actinic, mind-wrenching form could the countermeme take? How could human hands assemble something so devastatingly powerful and hold it steady; what human mind could wield it without exploding from the inside out? What would deploying that concept in anger do to human ideatic space? How far out from the solution is modern memetic science, a year, a century? What insane impossibility has Hughes just committed himself to?”

5. (slang)Extremely good; incredibly amazing.

   “That guy is insane at FPS games.”

   “Cederstrand was all over the ice, whipping his sled around and firing pucks into the net. It's what Straschnitzki is aiming for. "He's insane. The turns, the shots. It's something I want to do some day."”

   “And fans echoed their responses. "You nailed it, girl! This movie is so special. Your work is insane! 💗," one person wrote. "Is there ANYTHING you can't do?! I'm impressed," said another.”

   “On getting two quick eliminations, SypherPK cries out ecstatically: This gun is insane, it's the best gun ever! Woohoo!”

6. (informal)Enraged; furious.