Synonyms and related words :
aggravating, annoying, bothering, bothersome, chafing, disquieting, distressful, distressing, disturbing, exasperating, fretting, galling, harassing, importunate, importune, irking, irksome, irritating, pesky, pestering, pestiferous, pestilent, pestilential, plaguesome, plaguey, plaguing, provoking, teasing, tiresome, tormenting, troublesome, troubling, upsetting, vexatious, vexing, wearisome, worrying