IPA: /ɪmˈpɔːrtʃənət/
KK: /ɪmˈpɔrtʃənɪt/
Someone who is annoyingly persistent in asking for something or making demands.
The importunate salesman wouldn't take no for an answer and kept calling me.
Importunate → It is formed from "in-" (meaning not) and "portare" (meaning to carry) combined with the suffix "-ate" (indicating a state or quality). The word describes a state of being not able to carry on without persistent demands or requests, hence being troublesome or overly insistent.
Think of someone who is 'not able to carry on' without making persistent demands — that's why importunate means being overly insistent.