Synonyms and related words :
aggravating, annoying, bothering, bothersome, disturbing, exasperating, galling, harassing, harassment, importunate, importune, irking, irksome, irritating, pesky, pestering, pestiferous, pestilent, pestilential, plaguesome, plaguey, plaguing, provocation, provoking, teasing, tiresome, tormenting, troublesome, troubling, vexation, vexatious, wearisome, worrisome, worrying