See importune in Webster's New World Roget's A-Z Thesaurus II
verb
To trouble persistently from or as if from all sides:
badger, bedevil, beleaguer, beset, besiege, harass, harry, hound, pester, plague, solicit. See attack
adjective
Firm or obstinate, as in making a demand or maintaining a stand:
importunate, insistent, persistent, urgent. See continue
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