adjectival noun or quasi-adjective, takes genitive case の, noun

  1. great (quantity, amount, etc.), huge, enormous, serious.

Variations

Pronunciation Kanji Kana Is Common
多大 ただい

Contained Kanji Breakdown

many, frequent, much
おお.い タ まさ.に (2nd, N4)
evening
ゆう セキ ゆ (1st, N4)
large, big
ダイ おお- た (1st, N5)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
person
ひと ニン ジン (1st, N5)