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English definition of “unreasonable”

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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)
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