-ˈrē-zᵊn-ə-bəl How to pronounce unreasonable (audio)
: not governed by or acting according to reason
unreasonable people
: not conformable to reason : absurd
unreasonable beliefs
: exceeding the bounds of reason or moderation
working under unreasonable pressure
-ˈrē-zᵊn-ə-bəl- How to pronounce unreasonable (audio)
-ˈrē-zᵊn-ə-blē How to pronounce unreasonable (audio)

Examples of unreasonable in a Sentence

I told him that I wouldn't pay unless he sent me a replacement. Am I being unreasonable? You are entitled to compensation for unreasonable delays.
Recent Examples on the Web Reuters — Australia will introduce laws giving workers the right to ignore unreasonable calls and messages from their bosses outside of work hours without penalty, with potential fines for employers that breach the rule. Reuters, CNN, 8 Feb. 2024 In short, don’t resign yourself to lukewarm soup or cold spaghetti for fear of being unreasonable—but do expect to wait a beat for the chef to remake it. Li Goldstein, Bon Appétit, 6 Feb. 2024 But some workers say their office mandates are unreasonable and that employers are using them as a way to shed employees. Danielle Abril, Washington Post, 2 Feb. 2024 In Canada, the Federal Court has ruled that the Trudeau government’s invocation of the Emergencies Act in response to the 2022 Freedom Convoy protests was unreasonable, unjustified, and unconstitutional. Matthew Lau, National Review, 2 Feb. 2024 Candidates say this has forced deputies to work unreasonable amounts of overtime. Rebecca Ellis, Los Angeles Times, 1 Feb. 2024 The original request in Senator Coons’s draft bill that South Africa be subject to an out-of-cycle review of its membership in this agreement was neither unfair nor unreasonable. Ivor Ichikowitz, Fortune, 26 Jan. 2024 In October 2021, a federal jury awarded $17 million in damages to French’s family, finding that Sanchez used excessive and unreasonable force in the shooting. Salvador Hernandez, Los Angeles Times, 19 Jan. 2024 Families also had what the report called unreasonable challenges accessing the hospital where victims were transported. Kerry Breen, CBS News, 18 Jan. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unreasonable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of unreasonable was in the 14th century

Dictionary Entries Near unreasonable

Cite this Entry

“Unreasonable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unreasonable. Accessed 24 Feb. 2024.

Legal Definition


: not reasonable : beyond what can be accepted: as
: clearly inappropriate, excessive, or harmful in degree or kind
an unreasonable delay
an unreasonable restraint of trade
: lacking justification in fact or circumstance
an unreasonable inference
especially : irrational sense b
the agency decision was unreasonable
: not supported by a warrant or by a valid exception to a warrant requirement (as when there is reasonable suspicion) and therefore unconstitutional
the right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violatedU.S. Constitution amend. IV
see also search, seizure
unreasonableness noun
unreasonably adverb

More from Merriam-Webster on unreasonable

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