Making repeated or annoying requests or demands: causing annoyance or trouble.
1) The demands for chairmanship were becoming too importunate for me without a secretary.
2) She kept on making importunate requests.
Early 16th century: from Latin importunus ‘inconvenient, unseasonable’, based on Portunus, the name of the god who protected harbours (from portus ‘harbour’).
burning, clamant, compelling, critical, crying, dire