1. the quality or state of continuing for a long time; durability

Examples

• The lastingness of their friendship impressed everyone who knew them.
• We chose marble for the monument because of its lastingness.
• The artist was concerned about the lastingness of her watercolor paintings.
• The lastingness of the peace treaty depended on both nations’ commitment.
• He questioned the lastingness of digital storage compared to physical books.
• The lastingness of the building’s foundation was tested by the earthquake.