Definition of "longstanding" []

• Having persisted for an extended period of time. (adjective)

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• "All were based in longstanding craft traditions and all changed through exposure to foreign techniques."
• "Carlyle Thayer, of the Australian Defence Force Academy, said ASEAN leaders 'diplomatic reluctance is consistent with what he called their longstanding policy of "conflict avoidance." ""
• "The IIF's two chief representatives left Athens later Saturday, for what their spokesman described as "longstanding personal appointments.""