1. Having no known beginning and presumably no end
   "sempiternal truth"
   - dateless, endless

See also: infinite

• chain reactor
• chain stitch
• chain store
• chain tongs
• chain up
• chain wrench
• chain-smoke
• chain-smoker
• chained
• chainlike
• chainlink fence
• Arauca
• araucaria
• Araucaria araucana
• Araucaria bidwillii
• Araucaria columnaris
• Araucaria cunninghamii
• Araucaria excelsa
• araucaria family
• Araucaria heterophylla
• Araucariaceae
• Araujia
• Araujia sericofera
• Arava
• Arawak