Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “unreasonable”

unreasonable

adjective
 
 
/ʌnˈriːzənəbl/
not fair or acceptable: A merchant is not required to satisfy a customer's unreasonable demands.be unreasonable for sb/sth to do sth It is not unreasonable for technical jobs to be filled by people with particular skills honed in industry.be unreasonable to expect/suggest/think sth It would be unreasonable to expect annuity rates to remain high. an unreasonable cost/expense/price → Compare reasonable
(Definition of unreasonable from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of unreasonable?
Add Cambridge dictionaries to your browser to your website

Definitions of “unreasonable” in other dictionaries

Word of the Day

monster

any imaginary frightening creature, especially one that is large and strange

Word of the Day

What’s that lovely smell?

by Kate Woodford,
October 29, 2014
As adult humans, we can distinguish about 10,000 different smells. It’s no wonder, then, that we have so many words and expressions to describe them. This week we’re taking a look at those smell words – words that describe good smells and words that describe bad smells. Most smell words are either

Read More 

high-frequency trading noun

October 27, 2014
a type of stock market trading that uses very complex technology to trade extremely quickly, often making tiny profits which nevertheless add up to substantial sums Lewis’s book, Flash Boys, is driving a huge amount of attention toward the topic of high frequency trading, and it has rekindled some of

Read More