- The definition of bothersome is someone or something that is annoying or troublesome.
A bee that keeps landing on your head when you are trying to eat your lunch is an example of something that you would describe as bothersome.
bothersome definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
causing bother; annoying; troublesome; irksome
bothersome definition by American Heritage Dictionary
Causing bother; troublesome.