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Relevant vs Rational - What's the difference?

relevant | rational |

As adjectives the difference between relevant and rational

is that relevant is directly related, connected, or pertinent to a topic while rational is capable of reasoning.

As a noun rational is

(mathematics) a rational number: a number that can be expressed as the quotient of two integers.

relevant

English

(wikipedia relevant)

Adjective

(en adjective)
  • Directly related, connected, or pertinent to a topic.
    • His mother provided some relevant background information concerning his medical condition.
  • Not out of date; current.
  • * {{quote-news, year=1973, date=December 20, title=Hansen says Christmas time for thanks, hope, work=The Aberdeen Times citation
    • , passage=The message of Christmas is still relevant as we near the end of a troubled year and the beginning of an uncertain but challenging new year.}}
  • * {{quote-book, year=2008, author=Scott Cooper, Fritz Grutzner, Birk Cooper, title=Tips and Traps for Marketing Your Business, publisher=McGraw-Hill, isbn=978-0071494892 citation
    • , passage=Motorola was quickly losing the cell-phone battle to Nokia for a time. When they launched the RAZR phone and combined it with their "Hello Moto" campaign, it made the brand relevant again.}}

    Synonyms

    * applicable * germane * in point (legal) * pertinent * salient * significant

    Antonyms

    *

    Derived terms

    * safety-relevant

    Related terms

    * relevance * relevancy * relief * relieve * reliever

    External links

    * *

    Anagrams

    * ----

    rational

    English

    Alternative forms

    * rationall (obsolete)

    Etymology 1

    From (etyl) rationel, rational, from (etyl)

    Adjective

    (en adjective)
  • Capable of reasoning.
  • *
  • Logically sound; not contradictory or otherwise absurd.
  • (label) Healthy or balanced intellectually; exhibiting reasonableness.
  • *{{quote-magazine, date=2014-06-21, volume=411, issue=8892, magazine=(The Economist)
    • , title= Magician’s brain , passage=The [Isaac] Newton that emerges from the [unpublished] manuscripts is far from the popular image of a rational practitioner of cold and pure reason. The architect of modern science was himself not very modern. He was obsessed with alchemy.}}
  • Of a number, capable of being expressed as the ratio of two integers.
    • ¾ is a rational number, but ?2 is an irrational number.
  • Of an algebraic expression, capable of being expressed as the ratio of two polynomials.
  • (label) Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.
    • Antonyms
    * (reasonable) absurd, irrational, nonsensical * (capable of reasoning) arational, irrational, non-rational * (number theory) irrational
    Related terms
    * arational * irrational * non-rational * rationale * rationality * rationalness * subrational * suprarational

    Etymology 2

    From (etyl) rational, from , for which see the first etymology.

    Noun

    (en noun)
  • (mathematics) A rational number: a number that can be expressed as the quotient of two integers.
    • The quotient of two rationals''' is again a '''rational .
  • A rational being.
    • (Young)

    References

    * *

    Anagrams

    *