the fundamental reason or reasons serving to account for something.
a statement of reasons.
a reasoned exposition of principles.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use rationale in a sentence
“The only plausible rationale is that they want fewer people taking tests, because as the president has said, if we don’t take tests, you won’t know the number of people who are Covid-positive,” Cuomo told The New York Times.The CDC’s new COVID-19 testing guidelines could make the pandemic worse | Sara Kiley Watson | August 27, 2020 | Popular-Science
If Xi concludes that it’s pointless to wait for America’s anti-China politics to ebb, the rationale to strike back grows.
Even after decades of molecular research on the light-harvesting machinery in plants, scientists could not establish a detailed rationale for plants’ color.Why Are Plants Green? To Reduce the Noise in Photosynthesis. | Rodrigo Pérez Ortega | July 30, 2020 | Quanta Magazine
The rationale for doing so centered not on an antitrust analysis, but because he did not like the nature of their underlying business.Does the cannabis industry have a monopoly problem? | Jenni Avins | July 5, 2020 | Quartz
Most studies that used only one sex offered no rationale for doing so.Biomedical studies are including more female subjects (finally) | Bethany Brookshire | June 9, 2020 | Science News
But fishing for rationale in harassment is almost always a waste of time.A Female Writer’s New Milestone: Her First Death Threat | Annie Gaus | December 1, 2014 | THE DAILY BEAST
Erdogan and AKP officials also use religious rationale against abortion.Allah, Mom, and Baklava: Turkish President Uses Mothers and Kids as Political Pawns | Xanthe Ackerman | November 27, 2014 | THE DAILY BEAST
The rationale in those cases, he said, is that DNA should be used to identify the assailant.How the U.S. Ended Up With 400,000 Untested Rape Kits | Caitlin Dickson | September 23, 2014 | THE DAILY BEAST
What was your rationale behind ending Rilo Kiley and moving on to the next phase of your career?Jenny Lewis on 'The Voyager,' the End of Rilo Kiley, and High School Classmate Angelina Jolie | Marlow Stern | August 17, 2014 | THE DAILY BEAST
The feminist rationale for ectogenesis seems to practically write itself.
As far as the rationale can be given of what is finally irrational, he interprets the moral situation for us.Expositor's Bible: The Second Epistle to the Corinthians | James Denney
For the utensil is the symbol of a psychology, of a rationale of living, of an esthetic ideal, of a spiritual recognition.The American Country Girl | Martha Foote Crow
For I found upon inquiry they could not give any manner of rationale of their own divine service.Early Travels in Palestine | Arculf et al.
The practical value of Bentham's method is perhaps best illustrated by his rationale of Evidence.The English Utilitarians, Volume I. | Leslie Stephen
The wheels had merely got clogged by the oil congealed by the cold; which at once explains the rationale of the remedy adopted.Lives of the Engineers | Samuel Smiles
British Dictionary definitions for rationale
a reasoned exposition, esp one defining the fundamental reasons for a course of action, belief, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012