Synonym word of plaguy:
afflicting, aggravating, annoying, bothersome, burdensome, disagreeable, disappointing, disturbing, exasperating, galling, irksome, irritating, mean, nagging, nettlesome, pesky, provoking, teasing, tormenting, troublesome, troublous, trying, ugly, unpleasant, upsetting, wicked, worrisome, worrying
afflicting, aggravating, annoying, bothersome, burdensome, disagreeable, disappointing, disturbing, exasperating, galling, irksome, irritating, mean, nagging, nettlesome, pesky, provoking, teasing, tormenting, troublesome, troublous, trying, ugly, unpleasant, upsetting, wicked, worrisome, worrying