All toughness synonyms

noun toughness

• immobility — the quality or condition of being immobile or irremovable.
• wiriness — The state of being wiry.
• operativeness — (uncountable) The state or quality of being operative.
• backbone — Your backbone is the column of small linked bones down the middle of your back.
• durability — able to resist wear, decay, etc., well; lasting; enduring.
• brute force — physical strength, power
• leanness — (of persons or animals) without much flesh or fat; not plump or fat; thin: lean cattle.
• energy — The strength and vitality required for sustained physical or mental activity.
• laboriousness — requiring much work, exertion, or perseverance: a laborious undertaking.
• immovability — incapable of being moved; fixed; stationary.
• hardness — the state or quality of being hard: the hardness of ice.
• lustiness — The property of having or experiencing lust, of being lusty.
• firmness — not soft or yielding when pressed; comparatively solid, hard, stiff, or rigid: firm ground; firm texture.
• dependability — software reliability
• hardheartedness — The state of being hardhearted.
• grit — abrasive particles or granules, as of sand or other small, coarse impurities found in the air, food, water, etc.
• impenetrability — the state or quality of being impenetrable.
• hardiness — the capacity for enduring or sustaining hardship, privation, etc.; capability of surviving under unfavorable conditions.
• inelasticity — not elastic; lacking flexibility or resilience; unyielding.
• fixedness — The state or condition of being fixed.
• moxie — vigor; verve; pep.
• intestinal fortitude — courage; resoluteness; endurance; guts: to have intestinal fortitude.
• impermeability — not permeable; impassable.
• obstinance — The characteristic of being obstinate.
• chewiness — the condition of necessitating chewing or of being difficult to chew
• birr — to make or cause to make a whirring sound