Definition of irrationality noun from the Oxford Advanced Learner's Dictionary

 

irrationality

 noun
noun
BrE BrE//ɪˌræʃəˈnæləti//
 
; NAmE NAmE//ɪˌræʃəˈnæləti//
 
[uncountable, countable, usually singular]
 
jump to other results
the fact of not being based on, or not using, clear logical thought the irrationality of prejudice opposite rationality