だいぶ

also: だいぶん

だ

い

ぶ

Common wordJLPTN4Freq.FrequencyTop 5,000

Meanings

1

adverb

usually written using kana alone

Indicates a significant degree or amount, often with a sense of 'more than expected'. Used with adjectives, verbs, and nouns.

日本にほん

語ご

が

だいぶ

上手じょうず

に

なり

まし

た

ね

。

Your Japanese has improved a lot, hasn't it?

だいぶUsage83%
Usually written in kana. The kanji form 大分 is also used but less common.
大分Usage14%
- だいぶ
  Kanji form; can also be read だいぶん. Less common than kana.
- だいぶん
だいぶんUsage3%
Alternate reading, slightly more emphatic or dialectal. Often written in kana.

かなり
かなり is also 'considerably', but can sound more objective or formal. だいぶ often carries a subjective nuance of noticeable change or surprise.
ずいぶん
ずいぶん is stronger and more emphatic than だいぶ, often implying 'to a surprising extent'.

Derived from the kanji 大 (big) and 分 (part), originally meaning 'a large part'. The reading だいぶん is an older or dialectal variant.