reasonableness

(noun) the state of having good sense and sound judgment. Synonyms: rationality, reason. Examples: "His rationality may have been impaired." "He had to rely less on reason than on rousing their emotions."

(noun) goodness of reason and judgment. Example: "The judiciary is built on the reasonableness of judges."

(noun) the property of being moderate in price or expenditures. Synonyms: moderateness, modestness. Examples: "The store is famous for the reasonableness of its prices." "The modestness of the living standards here becomes obvious immediately."

(noun) moderation in expectations. Example: "Without greater reasonableness by both parties we will never settle this matter!."

(noun) the quality of being plausible or acceptable to a reasonable person. Synonyms: tenability, tenableness. Example: "He questioned the tenability of my claims."