reasonability means the state or quality of being reasonable. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From reason(able) + -ability. Compare Middle English unresonabiltee, unresonabylite, whence unreasonability. Piecewise doublet of rationability.
noun
- The state or quality of being reasonable.“1897, Judson Harmon, "Brief for the United States in the Case of the United States of America v. The Trans-Missouri Freight Association," The Yale Law Journal, vol. 6, no. 6, p. 323n.,
The very difficult inquiry as to the reasonability of such agreements was an inadequate protection.”