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Reasonable vs Certain - What's the difference?

reasonable | certain |

As adjectives the difference between reasonable and certain

is that reasonable is having the faculty of reason; endued with reason; rational while certain is certain.

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

    certain

    English

    Adjective

    (wikipedia certain) (en adjective)
  • Sure, positive, not doubting.
    • I was certain of my decision.
  • (obsolete) Determined; resolved.
  • * Milton
    • However, I with thee have fixed my lot, / Certain to undergo like doom.
  • Not to be doubted or denied; established as a fact.
  • * Bible, Dan. ii. 45
    • The dream is certain , and the interpretation thereof sure.
  • Actually existing; sure to happen; inevitable.
    • Bankruptcy is the certain outcome of your constant gambling and lending.
  • * Dryden
    • Virtue that directs our ways / Through certain dangers to uncertain praise.
  • * Shakespeare
    • Death, as the Psalmist saith, is certain to all.
  • Unfailing; infallible.
  • * Mead
    • I have often wished that I knew as certain a remedy for any other distemper.
  • Fixed or stated; regular; determinate.
  • * Bible, Ex. xvi. 4
    • The people go out and gather a certain rate every day.
  • Not specifically named; indeterminate; indefinite; one or some; sometimes used independently as a noun, and meaning certain persons.
  • * Bible, Luke v. 12
    • It came to pass when he was in a certain city.
  • * Macaulay
    • About everything he wrote there was a certain natural grace and decorum.

    Synonyms

    * See also

    Antonyms

    * (not doubting) uncertain * (sure to happen) impossible, incidental

    Derived terms

    * certainly

    Related terms

    * certainty

    Determiner

    (en determiner)
  • Having been determined but unspecified. The quality of some particular subject or object which is known by the speaker to have been specifically singled out among similar entities of its class.
  • * Bible, Acts xxiii. 12
    • Certain of the Jews banded together.
  • * , title=The Mirror and the Lamp
    • , chapter=3 citation , passage=One saint's day in mid-term a certain newly appointed suffragan-bishop came to the school chapel, and there preached on “The Inner Life.”}}

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