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Reasonable vs Reasonability - What's the difference?

reasonable | reasonability |

As an adjective reasonable

is having the faculty of reason; endued with reason; rational.

As a noun reasonability is

the state or quality of being reasonable; reasonableness.

reasonable

English

Adjective

(en adjective)
  • Having the faculty of reason; endued with reason; rational.
    • a reasonable being
  • Just; fair; agreeable to reason.
  • * {{quote-news
    • , year=2012 , date=May 27 , author=Nathan Rabin , title=TV: Review: THE SIMPSONS (CLASSIC): “New Kid On The Block” (season 4, episode 8; originally aired 11/12/1992) , work=The Onion AV Club citation , page= , passage=The episode also opens with an inspired bit of business for Homer, who blithely refuses to acquiesce to an elderly neighbor’s utterly reasonable request that he help make the process of selling her house easier by wearing pants when he gallivants about in front of windows, throw out his impressive collection of rotting Jack-O-Lanterns from previous Halloweens and take out his garbage, as it’s attracting wildlife (cue moose and Northern Exposure theme song).}}
  • Not excessive or immoderate; within due limits; proper.
    • a reasonable demand, amount, or price
  • Not expensive; fairly priced.
    • $20 a bottle is very reasonable for a good wine at a restaurant.
  • Satisfactory.

    • Antonyms

    * arbitrary * unreasonable

    reasonability

    English

    Noun

    (en-noun)
  • The state or quality of being reasonable; reasonableness.
  • *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. 323''n .,
  • *:The very difficult inquiry as to the reasonability of such agreements was an inadequate protection.
  • *1982 , , The Foundations of Knowing, Univ. of Minnesota Press, p. 7,
  • *:Epistemic reasonability could be understood in terms of the general requirement to try to have the largest possible set of logically independent beliefs that is such that the true beliefs outnumber the false beliefs.
  • *2003 , F. R. Anscombe, "Quiet Contributor: The Civic Career and Times of John W. Tukey," Statistical Science , vol. 18, no. 3, p. 302 (quoting National Academy of Sciences president Philip Handler),
  • *:"The nation and the Academy can count themselves fortunate that your integrated intelligence, insight, sound judgment, good taste, and unflappable reasonability were all available."