Find the Synonym: Problematic and Annoying Vocabulary Quiz

abrasive, aggravate, annoy, badger, bedevil, beset, bother, chafe, conundrum, cumbersome, defect, difficulty, disagreeable, dysfunctional, exasperate, flaw, hamper, hassle, hinder, impede, impediment, importune, incessant, invalidate, irksome, irrelevant, irreparable, irresponsible, irrevocable, irritate, irritating, irritation, lack, nettle, niggling, nuisance, pernickety, pitfall, plague, predicament, rankle, riddled, untoward, vexatious