- capable of being expressed exactly by a ratio of two integers.
- (of a function) capable of being expressed exactly by a ratio of two polynomials.
Origin of rational
Synonyms for rational
Antonyms for rational
Related Words for rationallevelheaded, sensible, wise, normal, impartial, lucid, deliberate, logical, judicious, thoughtful, sane, reasonable, stable, balanced, analytical, enlightened, prudent, intelligent, sober, knowing
Examples from the Web for rational
Contemporary Examples of rational
Reactionary movements are, first and foremost, not rational.Rage Against GamerGate’s Hate Machine: What I Got For Speaking Up
November 17, 2014
And, as noted with victim blaming, this undermines men as thinking, rational, conscious beings.Hey, Creeps, ‘Compliments’ Are Harassment, Too
November 5, 2014
We should know by now that a rational argument never can touch an affair of the heart.No, Stem Cells Don't Cause Autism
September 11, 2014
Of course, this call for hip-hop artists to speak out comes from a completely sincere and rational place.Not Every Black Celebrity Has to Take a Stand on Ferguson
August 19, 2014
First, laws that treat people differently from one another without a rational justification are unconstitutional.Justice Kennedy Opened the Door to Same-Sex Marriage, Will He Walk Through Next?
Geoffrey R. Stone
August 3, 2014
Historical Examples of rational
He is one of the few foreigners who expect a rational answer.Malbone
Thomas Wentworth Higginson
Every rational luxury is to be procured in England by such an income.
Times have changed, and now I enter Calais self-reliant and rational.The Uncommercial Traveller
The commander did what he could to bring me to a rational state of mind.My Double Life
And don't trust him at any time; for when he seems most rational, he's wildest in his talk.Life And Adventures Of Martin Chuzzlewit
Word Origin for rational
late 14c., "pertaining to reason;" mid-15c., "endowed with reason," from Old French racionel and directly from Latin rationalis "of or belonging to reason, reasonable," from ratio (genitive rationis) "reckoning, calculation, reason" (see ratio).