1. Belonging to or existing in times before recorded history
   - prehistoric

See also: past

• gasbag
• Gascogne
• Gascon
• gasconade
• Gascony
• gaseous
• gaseous nebula
• gaseous state
• gaseousness
• gasfield
• gash
• Gasherbrum
• gasification
• gasified
• gasify
• Gaskell
• gasket
• gaskin
• gaslight
• gasman
• gasmask
• gasohol
• gasolene
• gasoline
• gasoline bomb