1. Not arranged in order
   - disordered 
2. Not arranged in order hierarchically
   - ungraded, unranked

See also: nonhierarchic, nonhierarchical

• gas station
• gas stove
• gas system
• gas tank
• gas thermometer
• gas turbine
• gas up
• gas well
• gas-cooled reactor
• gas-discharge lamp
• gas-discharge tube
• gas-filled
• gas-tight
• gas-turbine ship
• gasbag
• Gascogne
• Gascon
• gasconade
• Gascony
• gaseous
• gaseous nebula
• gaseous state
• gaseousness
• gasfield
• gash