ir·ra·tio·nal 
/ɪˈræʃənəl/ adjective
/ɪˈræʃənəl/ adjective [more irrational; most irrational] : not rational: such as a : not thinking clearly : not able to use reason or good judgment
▪ He became irrational as the fever got worse.
b : not based on reason, good judgment, or clear thinking
▪ She had an irrational fear of cats. ▪ an irrational prejudice
▪ He became irrational as the fever got worse.
b : not based on reason, good judgment, or clear thinking
▪ She had an irrational fear of cats. ▪ an irrational prejudice
— ir·ra·tio·nal·i·ty /ɪˌræʃəˈnæləti/ noun [noncount]
▪ the irrationality of her fear
/ɪˌræʃəˈnæləti/ noun [noncount] ▪ the irrationality of her fear
— ir·ra·tio·nal·ly /ɪˈræʃənəli/ adverb
▪ He was behaving irrationally.
/ɪˈræʃənəli/ adverb ▪ He was behaving irrationally.
