Similar word to perseverance:
backbone, constancy, continuance, cool, dedication, determination, doggedness, drive, endurance, grit, guts, immovability, indefatigability, moxie, persistence, pertinacity, pluck, prolonging, purposefulness, pursuance, resolution, sedulity, spunk, stamina, steadfastness, stick-to-itiveness, tenacity
backbone, constancy, continuance, cool, dedication, determination, doggedness, drive, endurance, grit, guts, immovability, indefatigability, moxie, persistence, pertinacity, pluck, prolonging, purposefulness, pursuance, resolution, sedulity, spunk, stamina, steadfastness, stick-to-itiveness, tenacity