infuriating
From Longman Dictionary of Contemporary Englishinfuriatingin‧fu‧ri‧a‧ting /ɪnˈfjʊərieɪtɪŋ $ -ˈfjʊr-/ adjective ANNOYvery annoying The infuriating thing is that he is always right. —infuriatingly adverb an infuriatingly tricky crossword puzzleExamples from the Corpusinfuriating• I can't believe she's been reading our mail. How infuriating!• Jill's attitude towards the people who work under her is infuriating.• a whining and infuriating two-year-old boy