1. the quality or state of lasting a long time; durability or permanence
Usage: formal; often used in literary or philosophical contexts

Examples

• The enduringness of ancient monuments testifies to the skill of their builders.
• She admired the enduringness of their friendship despite years apart.
• The enduringness of classical music proves its timeless appeal.
• We must consider the enduringness of our environmental policies.
• The enduringness of human hope inspires us through difficult times.