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Insensible vs Irrational - What's the difference?

insensible | irrational |

As adjectives the difference between insensible and irrational

is that insensible is unable to be perceived by the senses while irrational is not rational; unfounded or nonsensical.

As a noun irrational is

a real number that can not be expressed as the quotient of two integers, an irrational number.

insensible

English

Adjective

(en adjective)
  • Unable to be perceived by the senses.
  • * Sir Thomas Browne
  • Two small and almost insensible pricks were found upon Cleopatra's arm.
  • * Dryden
  • They fall away, / And languish with insensible decay.
  • Incapable or deprived of physical sensation.
  • * {{quote-book, year=1905, author=
  • , title= , chapter=1 citation , passage=“[…] Captain Markam had been found lying half-insensible , gagged and bound, on the floor of the sitting-room, his hands and feet tightly pinioned, and a woollen comforter wound closely round his mouth and neck?; whilst Mrs. Markham's jewel-case, containing valuable jewellery and the secret plans of Port Arthur, had disappeared. […]”}}
  • Unable to be understood; unintelligible.
  • Not sensible or reasonable; meaningless.
  • * Sir M. Hale
  • If it make the indictment be insensible or uncertain, it shall be quashed.
  • Incapable of mental feeling; indifferent.
  • * Dryden
  • Lost in their loves, insensible of shame.
  • * Sir H. Wotton
  • Accept an obligation without being a slave to the giver, or insensible to his kindness.
  • * 1813 , Jane Austen, Pride and Prejudice , Modern Library Edition (1995), page 138
  • In spite of her deep-rooted dislike, she could not be insensible to the compliment of such a man's affection...
  • Incapable of emotional feeling; callous; apathetic.
  • Derived terms

    * insensibility * insensibly

    Synonyms

    * (incapable of emotional feeling) insensitive

    Antonyms

    * sensible

    irrational

    English

    Adjective

    (en adjective)
  • Not rational; unfounded or nonsensical.
  • an irrational decision
  • * July 18 2012 , Scott Tobias, AV Club The Dark Knight Rises [http://www.avclub.com/articles/the-dark-knight-rises-review-batman,82624/]
  • Where the Joker preys on our fears of random, irrational acts of terror, Bane has an all-consuming, dictatorial agenda that’s more stable and permanent, a New World Order that’s been planned out with the precision of a military coup.
  • (mathematics, arithmetic, number theory, not comparable) Of a real number, that cannot be written as the ratio of two integers.
  • The number π is irrational .

    Antonyms

    * (mathematics) rational

    Hyponyms

    * (mathematics) transcendental

    Derived terms

    * irrational number * irrationality * irrationalize * irrationalization

    Noun

    (en noun)
  • A real number that can not be expressed as the quotient of two integers, an irrational number.
  • * 1946 , (Bertrand Russell), History of Western Philosophy , I.24:
  • The square root of 2, which was the first irrational to be discovered, was known to the early Pythagoreans, and ingenious methods of approximating to its value were discovered.