1.
rapidly, steadily, at a fast pace
Describes continuous and rapid progress or change.
2.
one after another, in succession
Indicates things happening continuously without pause.
3.
without hesitation, boldly
Encourages doing something without holding back.
どんどん is an onomatopoeic adverb describing rapid, continuous action or change. All three senses share the idea of momentum with nothing holding it back — a process that keeps going (sense 1), items arriving without pause (sense 2), or a listener told not to hold back (sense 3).
Position: usually immediately before the verb it modifies.
Onomatopoeia origin: originally mimics the sound of drums (ドンドン), extended to mean 'rapidly' or 'continuously.'
Similar expressions
- どんどん vs. だんだん: だんだん means 'gradually' (slow, incremental change); どんどん means 'rapidly.' Both fit 上手になる, but they describe different rates of improvement.
- どんどん vs. 徐々に: 徐々に is the written-style equivalent of だんだん and likewise implies slowness.
- どんどん vs. どしどし: both encourage action, but どしどし is more emphatic and casual, and is largely limited to that encouraging use.
- どんどん vs. 次々に: 次々に specifically means 'one after another' and says nothing about speed; どんどん emphasizes the pace.
Common usage
- どんどん〜てください: encouragement to do something freely, without holding back. This is a warm, hospitable formula, the natural counterpart of telling a guest not to 遠慮.
- どんどん〜ていく / どんどん〜ている: keep ~ing more and more; the 〜ていく version stresses that the change carries on into the future.
Orthography: usually written in hiragana.
Related Words
Compare:
だんだん (gradually)
Related:
次々 (one after another)
Synonym:
どしどし (more emphatic)
Compare:
ますます (increasingly, more and more)
Related:
ばたんばたん (bang-bang)