reductio ad absurdum UK /rɪˈdʌk.ti.əʊ æd əbˈsɜː.dəm/US /rɪˈdʌk.ti.oʊ æd əbˈsɝ.dəm/ noun1 •The method of disproving a statement by assuming the statement is true and, with that assumption, arriving at a blatant contradiction. formsreductio ad absurdums · reductios ad absurdum
