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rational

used in a sentence
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Definition reasonable
in various senses, including:
  • "It's not rational to treat 2+2 as 5." — logical as contrasted to illogical
  • "I know you're upset, but please think about this in a rational manner." — based on reason as contrasted to emotion
  • "When I was 10-years-old, I wasn't very smart, but I was still rational." — capable of using reason as contrasted to being insane or lacking the ability to reason
  • "In matters of the heart, I trust my intuition more than my rational analysis." — based on a logical analysis as contrasted to intuition, instinct, custom, tarot-card reading, or some other system of decision making


More rarely, rational numbers in mathematics are numbers that can be expressed as a fraction consisting of only an integer in the numerator and denominator. For example, 1/3 is a rational number while pi is an irrational number.
  • It's hard to think rationally when I'm this upset.
rationally = in a reasonable manner
  • Let's try to ignore how upset we are for a moment and think about this rationally.
  • rationally = in a reasonable manner
  • We know we cannot rationally describe the kind of person we will fall in love with:
    Malcolm Gladwell  --  Blink
  • rationally = in a manner based on using reason rather than emotion
  • Not everyone understands what a completely rational process this is, this maintenance of a motorcycle.
    Robert M. Pirsig  --  Zen and the Art of Motorcycle Maintenance
  • rational = based on using reason
  • Because you were strong and rational, and anyone could see that Shawn was not.
    Tara Westover  --  Educated
  • rational = reasonable
  • Those whose attitude towards the war is most nearly rational are the subject peoples of the disputed territories.
    George Orwell  --  1984
  • rational = reasonable
  • We found him in a state of considerable excitement, but far more rational in his speech and manner than I had ever seen him.
    Bram Stoker  --  Dracula
  • rational = reasonable
  • In a fit of enthusiastic madness I created a rational creature and was bound towards him to assure, as far as was in my power, his happiness and well-being.
    Mary Shelley  --  Frankenstein
  • rational = capable of reasoning
  • She was a rational as you and I, more so perhaps, and we burned her.
    Ray Bradbury  --  Fahrenheit 451
  • rational = reasonable (of sound mind)
  • The older boys agreed; but here and there among the little ones was the doubt that required more than rational assurance.
    William Golding  --  Lord of the Flies
  • rational = logical
  • Moral education, which ought never, in any circumstances, to be rational.
    Aldous Huxley  --  Brave New World
  • rational = based on logical analysis alone
  • There is certain to be a more rational explanation.
    Ellen Raskin  --  The Westing Game
  • rational = reasonable
  • They cannot be reached by a rational argument.
    Ayn Rand  --  Atlas Shrugged
  • rational = reasonable
  • Eventually Vic and Roger had worn him down, but not with rational arguments.
    Stephen King  --  Cujo
  • rational = based on reason
  • If I had seemed rational, why had Mother believed Shawn when he'd told her I was picking fights?
    Tara Westover  --  Educated
  • rational = reasonable
  • My opposition was beyond rational, it was visceral.
    Tara Westover  --  Educated
  • rational = based on logical analysis alone
  • Surely there must be some rational explanation of all these mysterious things.
    Bram Stoker  --  Dracula
  • rational = based on scientifically accepted truths
  • When I reflected on the work I had completed, no less a one than the creation of a sensitive and rational animal, I could not rank myself with the herd of common projectors.
    Mary Shelley  --  Frankenstein
  • rational = capable of reasoning
  • But my mind was made nauseous by rational thought, and by the next morning the books had moved to my bed, where they propped up my laptop while I worked steadily through Buffy the Vampire Slayer.
    Tara Westover  --  Educated
  • rational = logical
  • If every action in the universe that we thought was random actually conformed to a rational pattern, Dad said, that implied the existence of a divine creator, and he was beginning to rethink his atheistic creed.
    Jeannette Walls  --  The Glass Castle
rational = reasonable

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