Synonyms of inflexibility

2 Syllables
rigors, grimness, rigor, firmness
3 Syllables
formalness, doggedness, stubbornness, mulishness, rigidness, die-hardism, willfulness, fixedness
4 Syllables
obstinacy, tenacity, contumacy, rigidity, obduracy, astringence, relentlessness, exactingness, austerities, inclemency, austerity, bullheadedness, pigheadedness, adamancy, incompliance, incompliancy
5 Syllables
intransigence, perseverance, conventionalism, inflexibleness, intransigency, implacableness, obdurateness, remorselessness, impliability, traditionalism, pertinacity
6 Syllables
implacability, inexorableness, impermeability, inelasticity
7 Syllables
indomitability, inexorability