| life expectancy(noun, expression, idiom, course, period) |
| long life(expression, idiom, course, life, existence) |
| permanency(noun, durability, life, duration, perpetuity) |
| stability(noun, strength, resolution, fortitude, stamina) |
| standing(noun, strength, resolution, fortitude, stamina) |
| constancy(noun, course, life, existence) |
| dependability(noun, durability, life, duration, perpetuity) |
| elderliness(noun, life, durability, duration) |
| endlessness(noun, life, durability, duration, diuturnity) |
| era(noun, course, age, duration, lifetime) |
| green old age(expression, idiom, course, life, age) |
| life span(noun, expression, idiom, course, duration) |
| lifespan(noun, life, durability, duration) |
| liveliness(noun, course, life, existence) |
| long-lastingness(noun, life, durability, duration) |
| long-livedness(noun, life, durability, duration) |
| long standing(expression, course, life, existence) |
| perdurability(noun, life, durability, duration) |
| perpetuity(noun, course, durability, duration) |
| second childhood(expression, idiom, life, age, duration) |