Inflexibility(n.) The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness; inflexibleness; rigidity; firmness of will or purpose; unbending pertinacity; steadfastness; resoluteness; unchangeableness; obstinacy.
Thesaurus Entries
act of God, adamantness, certainty, concentration, constancy, dourness, fate, fatefulness, firmness, firmness of mind, fixedness, flintiness, force majeure, fundamentalism, grimness, hard-bittenness, hard-nosedness, hardness, immobility, immobilization, immovability, immovableness, immutability, implacability, impliability, indefeasibility, inductility, inelasticity, ineluctability, inertia, inescapableness, inevasibleness, inevitability, inevitable accident, inevitableness, inexorability, inextensibility, inextricability, intractability, intransigeance, intransigence, intransigency, intransigentism, irreconcilability, irremovability, irresilience, irresiliency, irrevocability, loyalty, necessity, obduracy, obdurateness, obstinacy, orthodoxy, precisianism, predetermination, purism, puritanism, relentlessness, rigidity, rigidness, rigor, rigorism, rigorousness, settledness, solidity, staunchness, steadfastness, steadiness, steeliness, sternness, stiff temper, stiffness, stubbornness, sureness, toughness, trueness, unalterability, unavoidable casualty, unavoidableness, unbendingness, unchangeability, uncompromisingness, uncontrollability, undeflectability, ungivingness, unlimberness, unmalleability, unmovability, unpliability, unpreventability, unrelentingness, unyieldingness, vis inertiae, vis major