crazy
UK: ˈkreɪzi | US: ˈkreɪzi
adj. mentally deranged; insane
adj. extremely enthusiastic or obsessed (informal)
adj. foolish or impractical
The word "crazy" originates from the Middle English crasen (to shatter), likely influenced by Old Norse krasa (to crack). By the 16th century, "craze" described cracks in pottery or mental instability, metaphorically linking broken objects to disturbed minds. The suffix "-y" later formed the adjective, solidifying its modern meanings of insanity or irrational behavior.
The old man was declared crazy after talking to imaginary friends.
She’s crazy about classical music and attends every concert.
His crazy idea to sail alone impressed no one.
The crowd went crazy when the band took the stage.
Working 80 hours a week is just crazy.