tenacity, athleticism, aggressiveness, tenaciousness, feistiness, explosiveness, scrappiness, fearlessness, work ethic, grit, moxie, physicalness, smarts, poise, physicality, unselfishness, quickness, finesse, relentlessness, fortitude, grittiness, resiliency, spunk, cockiness, versatility, ferociousness, shiftiness, stoutness, swagger, fierceness, doggedness, steadiness, steeliness, decisiveness, ruthlessness, combativeness, unflappability, consistency, hustle, stamina, brashness, gameness, strength, bravado, youngness, perseverance, courage, gutsiness, inexperience, composure, craftiness, athletism, resilience, stubbornness, intensity, pugnaciousness, qualities, ferocity, abrasiveness, humility, humbleness, cohesiveness, elusiveness, skill, guile, courageousness, prowess, brawn, honesty, nastiness, boldness, mettle, flair, perseverence, durability, ruggedness, candor, charisma, indomitability, guts, intangibles, orneriness, temperament, meanness, levelheadedness, adversity, flashiness, forcefulness, calmness, edginess, gumption, shrewdness, astuteness, resoluteness, assertiveness, timidness, tirelessness, truculence, sturdiness, chutzpah, roundedness, pragmatism, hardness, ductility, fluidity, robustness, hardiness, flexibility, ability, fineness, buoyancy, sharpness, depth, malleability, maneuverability, tensile, stiffness, creep, permeability, charpy, fatigue, rupture, compressive, rheological, uniaxial, corrosion, flexural, hardening, loudness, modulus, photoelastic, photometric, quantifiable

difficultness, difficulty, elasticity, endurance, strength

formidability, huskiness, ruggedness, stamina, staying power, temper