ずいぶん
Meanings
Adverb
Usually written in kana
1. very; extremely; surprisingly; fairly; quite; considerably; awfully; terribly
But, I guess they must have been pushing themselves pretty hard.
Adjective (な)
Usually written in kana
2. terrible; horrid; contemptible; reprehensible
What a rude greeting.
3. remarkable; extraordinary
Pitch accent
ず
いぶん
Top 1900
Composed of
part; portion; amount; worth (as in "two days' worth"); one's means; one's place; one's duty
Examples (37 in total)
It finished quite early, didn't it?
But, I guess they must have been pushing themselves pretty hard.
That's a rather sudden question.