Rational vs Legitimate - What's the difference?

rational | legitimate |


As adjectives the difference between rational and legitimate

is that rational is capable of reasoning while legitimate is in accordance with the law or established legal forms and requirements; lawful.

As a noun rational

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

As a verb legitimate is

to make legitimate, lawful, or valid; especially, to put in the position or state of a legitimate person before the law, by legal means.

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  • , title= Magician’s brain , passage=The [Isaac] Newton that emerges from the [unpublished] manuscripts is far from the popular image of a rational practitioner of cold and pure reason.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

    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

    *

    legitimate

    English

    Etymology 1

    From . Originally "lawfully begotten," from (etyl) legitimer and directly from

    Adjective

    (en adjective)
  • In accordance with the law or established legal forms and requirements; lawful.
  • *
  • Conforming to known principles, or established or accepted rules or standards; valid.
  • legitimate''' reasoning; a '''legitimate standard or method
  • * (rfdate) Macaulay
  • Tillotson still keeps his place as a legitimate English classic.
  • Authentic, real, genuine.
  • legitimate''' poems of Chaucer; '''legitimate inscriptions
  • (senseid)Lawfully begotten, i.e., born to a legally married couple.
  • Relating to hereditary rights.
  • Synonyms
    (checksyns) * lawful, legal, rightful
    Antonyms
    * illegitimate, false

    Etymology 2

    Legal Latin, from legitimatus, past participle of (legitimo). See above for antecedents

    Verb

    (legitimat)
  • To make legitimate, lawful, or valid; especially, to put in the position or state of a legitimate person before the law, by legal means.
  • Usage notes
    * Forms of (legitimize) are about twice as common as forms of the verb legitimate in the US. * Forms of legitimate are somewhat more common than the forms of the verbs (legitimize) and (legitimise) in the UK combined.
    Synonyms
    * legitimize
    Derived terms
    * delegitimate