1. Existing for a long time
   "a long-lasting friendship"
   - durable, lasting, long-lived

See also: long

• federalisation
• federalise
• federalism
• federalist
• Federalist Party
• federalization
• federalize
• federally
• federate
• federated
• Federated States of Micronesia
• federation
• Federation of Saint Kitts and Nevis
• federation of tribes
• federative
• Federative Republic of Brazil
• Federico Fellini
• federita
• fedora
• fee
• fee simple
• fee splitting
• fee-tail
• feeble
• feebleminded