51Թ

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View synonyms for

rational

[ rash-uh-nl, rash-nl ]

adjective

  1. agreeable to reason; reasonable; sensible:

    a rational plan for economic development.

  2. having or exercising reason, sound judgment, or good sense:

    a calm and rational negotiator.

    Synonyms: , , ,

    Antonyms:

  3. being in or characterized by full possession of one's reason; sane; lucid:

    The patient appeared perfectly rational.

    Antonyms:

  4. endowed with the faculty of reason:

    rational beings.

  5. of, relating to, or constituting reasoning powers:

    the rational faculty.

  6. proceeding or derived from reason or based on reasoning:

    a rational explanation.

  7. Mathematics.
    1. capable of being expressed exactly by a ratio of two integers.
    2. (of a function) capable of being expressed exactly by a ratio of two polynomials.
  8. Classical Prosody. capable of measurement in terms of the metrical unit or mora.


noun

  1. Mathematics. rational number.

rational

/ ˈæʃəə /

adjective

  1. using reason or logic in thinking out a problem
  2. in accordance with the principles of logic or reason; reasonable
  3. of sound mind; sane

    the patient seemed quite rational

  4. endowed with the capacity to reason; capable of logical thought

    man is a rational being

  5. maths expressible as a ratio of two integers or polynomials

    a rational number; a rational function

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. maths a rational number
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • ˈپDzԲ, adverb
  • ˈپDzԲԱ, noun
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Other 51Թ Forms

  • ·پDz·· adverb
  • ·پDz··Ա noun
  • ·پ··پDz· adjective
  • ···پDz· adjective
  • ԴDz··پDz· adjective
  • ···پDz· adjective
  • ··پDz· adjective
  • ܲ·-·پDz· adjective
  • ٰԲ··پDz· adjective
  • ܱ·ٰ··پDz· adjective
  • ܲ··پDz· adjective
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51Թ History and Origins

Origin of rational1

First recorded in 1350–1400; Middle English racional, from Latin پō, equivalent to پō- (stem of پō ) reason + - -al 1
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51Թ History and Origins

Origin of rational1

C14: from Latin پōnālis , from پō reason
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Synonym Study

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Example Sentences

Examples have not been reviewed.

Ross Perot’s and Pat Buchanan’s presidential bids in the 1990s centered on the foreign trade imbalance, but what they offered was more xenophobia than a rational plan to fix the trade deficit.

From

People are leaving, or not coming to California, for rational reasons — and most of them are economic.

From

They imagine the American voter as some type of human calculator who makes political decisions to maximize their material, economic, or otherwise “rational” goal and output.

From

In short, share prices are not always a rational measure of a firm's value, especially in the high-tech sector, or even of its prospects.

From

His ability for rational thought is limited to his survival instinct.

From

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