im·por·tu·nate 
/ɪmˈpoɚtʃənət/ adjective
/ɪmˈpoɚtʃənət/ adjective [more importunate; most importunate] formal 1 : making repeated or annoying requests or demands
▪ an importunate salesman 2 : causing annoyance or trouble
▪ importunate demands
▪ an importunate salesman
▪ importunate demands
— im·por·tu·nate·ly adverb
▪ importunately demanding help
▪ importunately demanding help
