unreasonable
Americanadjective
-
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.
- Synonyms:
- nonsensical, stupid, absurd, preposterous, silly, foolish, senseless
-
excessive, immoderate, or exorbitant; unconscionable.
an unreasonable price; unreasonable demands.
- Synonyms:
- extravagant
-
not having the faculty of reason.
adjective
-
immoderate; excessive
unreasonable demands
-
refusing to listen to reason
-
lacking reason or judgment
Other Word Forms
- unreasonableness noun
- unreasonably adverb
Etymology
Origin of unreasonable
First recorded in 1300–50, unreasonable is from the Middle English word unresonabel. See un- 1, reasonable
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The agent’s actions are “dangerous and unreasonable,” Murphy said.
From Salon
Chickpeas tossed with olive oil, harissa, garlic powder, chili powder, oregano, and an almost unreasonable amount of lemon zest.
From Salon
He told the Guardian Australia he believed some of her previous statements had been counterproductive to the Palestinian cause and that given the circumstances after the Bondi attack the decision was not unreasonable.
From BBC
"And when they send an email or leave a comment on social media, they'll make a load of unreasonable threats such as 'We'll leave bad reviews unless you do X, Y and Z'," he adds.
From BBC
“Fandom” is essentially synonymous with “unreasonable” at this point, and the “Heated Rivalry” fandom can be quite unreasonable, to put it mildly.
From Salon
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
