"Pestiferously" Natural Recordings by Native Speakers
Pestiferously means in a pestilential or noxious manner; in a way that spreads disease or infection; extremely annoying or troublesome.
Persistent and annoyingly frequent in their demands or requests, often in a way that is disturbing or frustrating to others.
To pester someone means to annoy or bother them repeatedly, often in a persistent and annoying way.
Pestilent refers to something that is causing or spreading disease, or has a noxious or harmful effect. It can also describe something that is morally corrupting or degrading. In general, it implies a widespread and destructive influence.