uproarious

adjective4

1. •
   Causing, or likely to cause, an uproar.

   • “Oh! there's no fear of him,” said Burgess, cheerily; “if he grows uproarious, we'll soon give him a touch of the cat.” — 1874
2. •
   Characterized by uproar, that is, loud, confused noise, or by noisy and uncontrollable laughter.

   • The two bushes looked up in surprise, and when they saw Dorothy, the Cowardly Lion and Sir Hokus, they fell into each other's branches and burst into the most uproarious laughter. — 1921
3. •
   Extremely funny; hilarious.
4. •
   (figurative) In a mess; dishevelled, untidy.