Jisho

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Suru verb, Noun, Adverb, Adverb taking the 'to' particle
1. to get irritated; to get annoyed; to be on the edge; to fret; to lose patienceUsually written using kana alone
Other forms
苛苛 【いらいら】刺々 【いらいら】刺刺 【いらいら】イライラ
Notes
刺々: Out-dated kanji. 刺刺: Out-dated kanji.

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