not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.
not in accordance with practical realities, as attitude or behavior; inappropriate: His Bohemianism was an unreasonable way of life for one so rich.
excessive, immoderate, or exorbitant; unconscionable: an unreasonable price; unreasonable demands.
not having the faculty of reason.
- un·rea·son·a·ble·ness, noun
- un·rea·son·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use unreasonable in a sentence
So, there probably is some amount of extra risk in the system that warrants, higher requirements, so it’s not entirely unreasonable.Elon Musk busts Clubhouse limit, fans stream to YouTube, he switches to interviewing Robinhood CEO | Mike Butcher | February 1, 2021 | TechCrunch
I know that it is probably unreasonable for me to tell him that I am hurt that he never acknowledged my wife's death or my loss, and I'm not sure if I could ever bring myself to do so anyway.Miss Manners: Former colleague’s omission is puzzling | Judith Martin, Nicholas Martin, Jacobina Martin | January 22, 2021 | Washington Post
Those rules, though, can create unreasonable expectations for behavior by teenagers, some experts say.Judges Are Locking Up Children for Noncriminal Offenses Like Repeatedly Disobeying Their Parents and Skipping School | by Jodi S. Cohen and Duaa Eldeib | December 22, 2020 | ProPublica
As you balance the pandemic and two other young children, it is unreasonable to also manage your child’s learning and assignments.My third-grader gets distracted during online classes. How can I help? | Meghan Leahy | December 2, 2020 | Washington Post
OSHA’s 10-year delay in acting on the Infectious Diseases Standard is unreasonable.Health-care workers file lawsuit against OSHA, accusing agency of failing to keep them safe | Eli Rosenberg | October 29, 2020 | Washington Post
They are often characterized as benevolent and admirable; when we do the same, we are angry and unreasonable.
Teague replied: “I have to allow an operator or plugger a way to appeal when he believes our requirements are unreasonable.”Two Texas Regulators Tried to Enforce the Rules. They Were Fired. | David Hasemyer, InsideClimate News | December 9, 2014 | THE DAILY BEAST
It would not be unreasonable to assume Piper might do the same to Litchfield if given the opportunity.Orange Is the New Weeds: The Adventures of Jenji Kohan Across the 8th Dimension | Rich Goldstein, Emily Shire | August 18, 2014 | THE DAILY BEAST
It would not be unreasonable for Virginia's citizens to have a sense of defenselessness as a result.Pressure Builds on Democratic Attorneys General to Quit Fighting Gay Marriage | David Freedlander | January 24, 2014 | THE DAILY BEAST
In his opinion, Judge Bernard McGinley said that the ID requirement placed an unreasonable burden on the right to vote.
It is a vile world because it is an under-educated world, unreasonable, suspicious, base and ferocious.The Salvaging Of Civilisation | H. G. (Herbert George) Wells
To ask God for His love, or for His grace, or for any worldly benefit seems to me unreasonable.God and my Neighbour | Robert Blatchford
Old Rushmere had raised an unreasonable persecution against his son on Dorothy's account.The World Before Them | Susanna Moodie
It was unreasonable to expect those makers of marine steam-engines to report that Trevithick knew better than they did.Life of Richard Trevithick, Volume II (of 2) | Francis Trevithick
Thus unreasonable delay in presenting a check will discharge the indorser whether such delay is a cause of loss to him or not.Putnam's Handy Law Book for the Layman | Albert Sidney Bolles
British Dictionary definitions for unreasonable
immoderate; excessive: unreasonable demands
refusing to listen to reason
lacking reason or judgment
- unreasonableness, noun
- unreasonably, adverb
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