ex·pos·tu·late 
/ɪkˈspɑ:stʃəˌleɪt/ verb
ex·pos·tu·lates; ex·pos·tu·lat·ed; ex·pos·tu·lat·ing /ɪkˈspɑ:stʃəˌleɪt/ verb [no obj] formal : to disagree with something or argue against it
▪ She expostulated (with us) at length on/about/concerning the proposed law.
▪ She expostulated (with us) at length on/about/concerning the proposed law.
— ex·pos·tu·la·tion /ɪkˌspɑ:stʃəˈleɪʃən/ noun, plural ex·pos·tu·la·tions [count, noncount]
/ɪkˌspɑ:stʃəˈleɪʃən/ noun, plural ex·pos·tu·la·tions [count, noncount]
