Noun

• S: (n) rationality, reason, reasonableness (the state of having good sense and sound judgment) "his rationality may have been impaired"; "he had to rely less on reason than on rousing their emotions"
• S: (n) reasonableness (goodness of reason and judgment) "the judiciary is built on the reasonableness of judges"
• S: (n) reasonableness, moderateness, modestness (the property of being moderate in price or expenditures) "the store is famous for the reasonableness of its prices"; "the modestness of the living standards here becomes obvious immediately"
• S: (n) reasonableness (moderation in expectations) "without greater reasonableness by both parties we will never settle this matter!"
• direct hypernym / inherited hypernym / sister term
• S: (n) moderation, moderateness (quality of being moderate and avoiding extremes)
• S: (n) degree, grade, level (a position on a scale of intensity or amount or quality) "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree"
• S: (n) property (a basic or essential attribute shared by all members of a class) "a study of the physical properties of atomic particles"
• S: (n) attribute (an abstraction belonging to or characteristic of an entity)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• derivationally related form
• S: (n) reasonableness, tenability, tenableness (the quality of being plausible or acceptable to a reasonable person) "he questioned the tenability of my claims"