persistency Synonyms

persistence tenaciousness perseverance doggedness pertinacity tenacity perversity perverseness persistent persistance immutability persisting perpetuity perpetuating producing resoluteness continuum mulishness relentlessness bullheadedness insistency stubbornness steadfastness stamina stability resolution permanence patience diligence determination contumacy continuity continuing continuation continuance constancy consistency conservancy durability duration endurance obstinacy obduracy inveteracy insistence inflexibility immovability fixedness firmness extension