Pandemonium or Pandaemonium /pan-di-mōˈni-əm/

1. The capital of Hell in Milton's Paradise Lost
2. (without cap) any very disorderly or noisy place or assembly
3. (without cap) tumultuous uproar

The following also without cap

Pandemonīˈacal adjective

Pandemōˈnian adjective

Pandemonic /-monˈik/ adjective

• collaborating
• collaboration
• collaborationism
• collaborationist
• collaborationists
• collaborations
• collaborative
• collaboratively
• collaborator
• collaborators
• collage
• collagen
• collagenase
• collagenases
• collagenic
• collagenous
• collagens
• collages
• collagist
• collagists
• collapsabilities
• collapsability
• collapsable
• collapsar
• collapsars