Definition of unreasonably adverb from the Oxford Advanced Learner's Dictionary

 

unreasonably

 adverb
adverb
BrE BrE//ʌnˈriːznəbli//
 
; NAmE NAmE//ʌnˈriːznəbli//
 
 
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in a way that is not fair or expects too much They had unreasonably high expectations. Time off from work will not be unreasonably refused. opposite reasonably (3)