Synonyms of rigor

1 Syllable
trial, strait, flack
2 Syllables
ordeal, harshness, hardship, hardness, roughness, sternness, strictness, firmness, stiffness
3 Syllables
niceties, affliction, privation, formalness, precisions, exactness, grievance, precision, thoroughness, stringency, suffering, nicety
4 Syllables
hardheartedness, tenacity, conscientiousness, predicament, rigidity, obduracy, astringence, exactingness, accuracy, austerities, asperity, inclemency, austerity, rigorousness, severities, tribulation, punctiliousness, severity, visitation, difficulty, preciseness
5 Syllables
definitude, exactitude, vicissitude, conventionalism, traditionalism, intolerance, definiteness, meticulousness
6 Syllables
definitiveness, inflexibility