1) Annoying sort 2) Annoying type 3) Blighter 4) Bore 5) Bore or pest 6) Boring pest 7) Cuss 8) Dullard 9) Gadfly 10) Nagger of a yenta 11) Nudnick 12) Persistently annoying pest 13) Pest 14) Pest, Yiddish style 15) Pesterer 16) Someone who is a boring pest 17) Yiddish for boring person Found on https://www.crosswordclues.com/clue/nudnik