adverb
once again; yet again; (there you go) again
Emphatic repetition of また, often used when something happens again, especially with a nuance of surprise, exasperation, or amusement. Common in casual speech.
またまた遅刻か。
Late again, huh?
彼はまたまた同じ間違いをした。
He made the same mistake yet again.
Rare kanji form without iteration marks.
Rare kanji form using 復.
Rare kanji form using 復 without iteration marks.
Rare kanji form using 亦.
Rare kanji form using 亦 without iteration marks.
また is the neutral 'again'; またまた is an emphatic, often colloquial repetition.
Reduplication of また (again) for emphasis. The kanji forms are rare and mostly historical.