Adjective "rational" definition and examples



Definitions and examples


Based on or in accordance with reason or logic.
  1. 'Issues such as these are difficult to resolve on a purely rational basis.'
  2. 'He also helped to establish the Roman Empire on a much more rational basis.'
  3. 'Are you suggesting that rational arguments are not very important?'
  4. 'Breton suggested that rational thought repressed the powers of creativity and imagination and thus was a hindrance to artistic expression.'
  5. 'But for many people, their faith isn't based around an irrational fervour, and it isn't based around rational logic.'
  6. 'The ideals of liberty, equality, and fraternity proved inadequate as bases for a fully rational society.'
  7. 'It seems to me that philosophers are often criticized for always demanding rational explanations.'
  8. 'If the substantive law of security could be more rational, so too could the terminology.'
  9. 'Hegel develops his rational ontology of gender within a logic of oppositions.'
  10. 'Maybe it is simply so beyond our knowing that rational thinking breaks down.'
  11. 'Ursula's upset—she's not being very rational'
  12. '"She was one of my favorite teachers, and always seemed so rational.'
  13. 'It was a sensible, reasonable, rational group.'
  14. 'To be honest, I once thought about having another woman, but I did not do it because I was able to be rational, I did not want to take any risks.'
  15. 'Interestingly, even the mentally deranged humans are rational if not sensible.'
  16. 'Sarah had always been so sensible and rational and now she actually sounded as if she believed what she was saying.'
  17. 'However, he isn't entirely rational either according to our understanding of the term.'
  18. 'How can I be so sure that he'll continue to alienate the rational and sensible voting public with his political decisions?'
  19. 'Is it only acceptable to be rational and logical?'
  20. 'This guy used to be a dyed in the wool reactionary but I've noticed that lately he's been well… pretty sensible and rational.'
  21. 'Do we really believe that people who are capable of such horrifically violent crimes are going to be so coolly logical and rational?'
  22. 'Rationality in creation (like the genetic code) is a logical consequence of a rational God, who speaks to man through his Son.'
  23. 'Kant said that the mind is rational, it is endowed with Reason.'
  24. 'There is implanted in every rational being the capacity to distinguish the true from the false, to weigh the evidence, and to confront the world without illusions.'
(of a number, quantity, or expression) expressible, or containing quantities which are expressible, as a ratio of whole numbers.
  1. 'The set of rational numbers is denumerable, that is, it has cardinal number d.'
  2. 'Term formalism can perhaps be extended to the integers and rational numbers, but what are the real numbers supposed to be?'


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.

3. being in or characterized by full possession of one's reason; sane; lucid: The patient appeared perfectly rational.

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 reaso

More examples(as adjective)

"bids can be rational in terms."

"recreations can be rational in senses."

"plannings can be rational for classes."

"people can be rational to people."

"people can be rational except points."

More examples++


Late Middle English (in the sense ‘having the ability to reason’): from Latin rationalis, from ratio(n-) ‘reckoning, reason’ (see ratio).