malleability Antonyms

brittleness intractableness friability intransigence unmalleability relentlessness mulishness single-mindedness stiff neck stiffneckedness communist infiltration bull-headedness apron strings direct action stiffness doggedness firmness hardness implacability inflexibility inflexibleness intractability obduracy obstinacy rigidity steeliness stiff-neckedness pig-headedness