Japanese has many onomatopoeia and mimetic words (擬態語, gitaigo) that describe pace and change. Two of the most common are どんどん (dondon) and だんだん (dandan). Both translate roughly as “more and more” or “gradually,” but they feel very different in real speech.
| どんどん (dondon) | だんだん (dandan) | |
|---|---|---|
| Meaning | Rapidly / with momentum | Gradually / step by step |
| Pace | Fast, energetic | Slow, steady |
| Nuance | Things are building quickly | Things change little by little over time |
| Register | Casual to standard | Casual to standard |
どんどん — Fast, Energetic Progress
どんどん describes something happening rapidly, with strong momentum. It gives a sense of things piling up or speeding up. Think of a drumbeat getting louder — don-don-don.
- 日本語がどんどん上手になっています。— Your Japanese is improving rapidly.
- 仕事がどんどん増えてきた。— The work keeps piling up (fast).
- お金がどんどんなくなる。— Money disappears so quickly.
Key feel: speed + energy. If something is gaining pace, use どんどん.
だんだん — Slow, Steady Change
だんだん describes a slow, gradual change — like a sunrise or the temperature dropping over an evening. It is calm and unhurried.
- だんだん日が短くなってきた。— The days are gradually getting shorter.
- 彼女の日本語はだんだん上手になっている。— Her Japanese is getting better little by little.
- だんだん眠くなってきた。— I’m getting sleepy little by little.
Key feel: slow + steady. If change is quiet and gradual, use だんだん.
Side-by-Side Comparison
| Situation | Best word | Why |
|---|---|---|
| Your Japanese skills are shooting up fast | どんどん | Rapid momentum |
| The temperature drops little by little at night | だんだん | Slow steady change |
| Customers keep coming in quickly | どんどん | Fast-paced accumulation |
| You’re slowly getting used to life in Japan | だんだん | Gradual adjustment |
Is the change FAST and energetic?
YES → どんどん
NO → Is it slow and gradual?
YES → だんだんNatural Conversations
どんどん寒くなってきたね！— It’s getting colder and colder fast, isn’t it!
うん、でもだんだん慣れてきたよ。— Yeah, but I’m gradually getting used to it.
どんどん食べてね！— Go ahead and eat freely (don’t hold back)!
ありがとう、だんだんお腹がいっぱいになってきた。— Thanks, I’m gradually getting full.
Common Mistakes
Mistake: Using だんだん for rapid change.
❌ 彼はだんだん走り始めた。(He started running rapidly.)
✅ 彼はどんどん走り始めた。
Mistake: Using どんどん for very slow, barely perceptible change.
❌ 岩はどんどん風化している。(Rocks are gradually eroding.)
✅ 岩はだんだん風化している。
Quick Quiz
Fill in the blank with どんどん or だんだん:
1. 彼女の料理の腕が___上がっている。(Her cooking skills are rapidly improving.)
2. 夜が___長くなってきたね。(The nights are gradually getting longer, aren’t they.)
Answers: 1. どんどん 2. だんだん
Want to improve your Japanese even faster? italki connects you with native Japanese tutors for one-on-one lessons — a great way to practice real conversations and get personalized feedback.