rigorousness

1 the quality or state of being demanding or unyielding (as in discipline or criticism) the rigorousness of the training paid off when the dance students performed brilliantly at the recital Synonyms exactingness, hardness, harshness, inflexibility, rigidity, rigidness, rigor, severity, sternness, strictness, stringencyRelated Words callousness, hard-heartedness, implacability, obduracy, obdurateness, pitilessness; dourness, gruffness; asceticism, austereness, austerity, monasticism; determination, firmness, resolve, steadfastness; obstinacy, stubbornnessNear Antonyms forbearance, indulgence, kindness, lenience, patience, softness, tenderness, tolerance; responsiveness, willingness; compliance, pliability, pliancyAntonyms flexibility, gentleness, laxness, mildness

2 the quality or state of being very accurate these days the rigorousness of electronic timing is necessary to measure the minute differences in the performances of Olympic athletes Synonyms accuracy, accurateness, closeness, delicacy, exactitude, exactness, fineness, nicety, perfection, preciseness, rigor, precision, ultraprecision, veracityRelated Words correctness, fidelity, rightness, strictness, truth; definiteness, definitiveness, definitude, determinacy; nicety, subtlety; care, carefulness, fastidiousness, meticulousness, persnicketinessNear Antonyms approximation, roundness; falseness, falsity, incorrectness, wrongness; carelessness, guesswork, looseness; indefiniteness, vaguenessAntonyms coarseness, impreciseness, imprecision, inaccuracy, inexactitude, inexactness, roughness