longevity Synonyms

length of service permanence seniority stamina standing strength survival survivance time allotted span stability senility senescence robustness resilience persistence changelessness years span of life period of existence length of life autumn of life shelf life long-livedness life span life cycle enduringness lastingness life expectancy immutableness old age lifespan perpetuity permanency durability dotage diuturnity decrepitude debility continuity continuation continuance constancy caducity anility anecdotage agedness age durableness duration