Definition of irritating
: causing displeasure, anger, or annoyance an irritating noise/habit I felt more and more angry. There was something very irritating and aggressive in Summerlee's demeanour. — Arthur Conan Doyle
irritatinglyplay \ˈir-ə-ˌtā-tiŋ-lē\ adverb The computer was irritatingly slow.
First Known Use of irritating
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