crazy
US /ˈkreɪ.zi/
UK /ˈkreɪ.zi/

1.
2.
extremely enthusiastic or excited.
:
•
She's absolutely crazy about horses.
•
The crowd went crazy when their team scored.
3.
foolish or impractical.
:
•
That's a crazy idea, it will never work.
•
He made some crazy claims that no one believed.