1) Aggravation 2) Annoyance 3) Annoying 4) Bothersome 5) Disagreeable 6) Galling 7) Irritating 8) Irritation 9) Making a nuisance of oneself 10) Nettlesome 11) Nuisance 12) Persecution 13) Pesky 14) Pestiferous 15) Plaguey 16) Plaguy 17) Teasing 18) Vexatious 19) Vexing 1) Annoying 2) Bothersome 3) Disagreeable 4) Galling 5) Harassing 6) Irritating 7) Nettlesome 8) Pesky 9) Plaguy 10) Vexatious 
• (p. pr. & vb. n.) of Pester