rational vs rationale : Common Errors in English

About rational vs rationale

“Rational” is an adjective meaning “reasonable” or “logical”: “Ivan made a rational decision to sell his old car when he moved to New York.” “Rational” rhymes with “national.”“Rationale” is a noun which most often means “underlying reason”: “His rationale for this decision was that it would cost more to pay for parking than the car was worth.” “Rationale” rhymes with “passion pal.”

rational Meaning(s)

  • (n) an integer or a fraction
  • (a) consistent with or based on or using reason
  • (s) of or associated with or requiring the use of the mind
  • (a) capable of being expressed as a quotient of integers
  • (s) having its source in or being guided by the intellect (as distinguished from experience or emotion)

rationale Meaning(s)

  • (n) (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)

rational in News

  1. Modern Science And Our Sense Of Wonder

    Science is often accused of extinguishing our enchantment with the world, of being too cold and rational. Quite the opposite is true, says Marcelo Gleiser. Modern science has restored a sense of wonder to the world with its revelations of objects unseen and realities unknown.
    on June 13, 2013 Source: NPR

  2. Beyond Bounds: Brock Wood KO’d Cancer, Now Kayaking The Mississippi

    There are two reasons (one rational, one irrational) why Brock Wood is going to have no problem kayaking the 2,400 miles down the Mississippi this summer.
    on June 13, 2013 Source: CBS Minnesota

  3. John Hancock TV Spots Break Industry Silence On Stock Market Fears

    Barely half of all Americans have money in stocks. Though there?s been an inflow recently, more people have been taking money out since the mortgage meltdown and subsequent bailouts suggested that the markets weren?t as rational or fair as investors may have hoped. The financial services industry has been silent
    on June 12, 2013 Source: Forbes

rationale in News

  1. News Summary: Facebook launches servers outside US

    NEW SERVERS: Facebook started processing data through its first server farm outside the United States, on the edge of the Arctic Circle in Sweden. THE RATIONALE: The company said the new servers should ...
    on June 12, 2013 Source: Associated Press via Yahoo! News

  2. Minicamp not for starters in Houston

    Gary Kubiak knows best when it comes to how hard to push the accelerator for the Houston Texans. But with their minicamp underway, I’m reminded how he treats the three days of work. While they are the peak of the offseason for most teams, they amount to a rest period for the Texans' front-liners. It seems cushy, but Kubiak offers a reasonable rationale. “They’ve had 10 good practices under their ...
    on June 12, 2013 Source: ESPN Blogs


    . Laquinimod showed additive effect in improving renal function when combined with the standard of care treatment . Results provide rationale for further studies of laquinimod in active lupus nephritis ...
    on June 12, 2013 Source: Marketwired via Yahoo! Finance

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