How to Say I'm Excited in Japanese: Wakuwaku, Tanoshimi and Kōfun

"I'm so excited" is one of the first feelings learners want to express, and the dictionary word, kōfun, is exactly the one that can make people smile for the wrong reason.

What you need to know

How to Say I'm Excited in Japanese: Wakuwaku, Tanoshimi and Kōfun

Japanese has no single word that matches every use of English "excited". For looking forward to something, the natural phrase is tanoshimi, as in tanoshimi desu or tanoshimi ni shite imasu. For the fizzy, can't-wait feeling, people use the onomatopoeia wakuwaku suru. Tension ga agaru describes your energy going up, and moriagaru describes a party, crowd or conversation getting lively. Kōfun suru means worked up or stimulated, which fits a thrilling match but can sound odd, or even suggestive, when you simply mean you are looking forward to a trip. This guide explains which phrase to use with friends, teachers and clients, how excitement differs from nerves (dokidoki), what people say back, and the mistakes that trip up learners.

Tanoshimi desu is the natural way to say you are looking forward to something

Wakuwaku suru is the excited, can't-wait feeling

Kōfun suru means worked up; use it for thrilling moments, not plans

Dokidoki is a racing heart: nervous, or excited and nervous together

Tanoshimi: the everyday way to say you're excited

楽しみ (tanoshimi) means something you look forward to, and it is how most Japanese speakers express excitement about a future event. Tanoshimi! alone means "I can't wait!" or "I'm so excited!". Add the event with ga: ryokō ga tanoshimi, I'm excited about the trip.

In polite speech, say tanoshimi desu. 楽しみにしています (tanoshimi ni shite imasu) means "I'm looking forward to it" and is the standard phrase for plans with teachers, acquaintances and colleagues. Its humble version, tanoshimi ni shite orimasu, suits emails and clients.

Mochi, Unihongo's mascot, guides a Japanese learning map for How to Say I'm Excited in Japanese: Wakuwaku, Tanoshimi and Kōfun: 楽しみ, 週末, 旅行.
A visual learning path for How to Say I'm Excited in Japanese: Wakuwaku, Tanoshimi and Kōfun, with three key Japanese study points.
JapaneseRomajiMeaning
楽しみ!Tanoshimi!I can't wait!
週末の旅行がすごく楽しみ。Shūmatsu no ryokō ga sugoku tanoshimi.I'm really excited about the weekend trip.
楽しみです。Tanoshimi desu.I'm looking forward to it.
お会いできるのを楽しみにしています。O-ai dekiru no o tanoshimi ni shite imasu.I'm looking forward to meeting you.
来週のイベント、楽しみにしてるね。Raishū no ibento, tanoshimi ni shiteru ne.Looking forward to next week's event.
楽しみにしております。Tanoshimi ni shite orimasu.I am looking forward to it. (humble)

Wakuwaku suru: that bubbling, can't-wait feeling

わくわく (wakuwaku) is onomatopoeia for eager, happy excitement, the feeling of a child the night before a school trip. Wakuwaku suru means "I'm excited", and wakuwaku shite kita means "I'm starting to get excited". It is bright and friendly, and works with friends and in light polite speech.

Wakuwaku can describe things as well as people. Wakuwaku suru eiga is an exciting film, and a new project can be wakuwaku suru too. It always carries a positive, anticipating feel.

JapaneseRomajiMeaning
わくわくする!Wakuwaku suru!I'm so excited!
だんだんわくわくしてきた。Dandan wakuwaku shite kita.I'm getting more and more excited.
明日のことを考えるとわくわくします。Ashita no koto o kangaeru to wakuwaku shimasu.Thinking about tomorrow makes me excited.
わくわくする新しいプロジェクトです。Wakuwaku suru atarashii purojekuto desu.It's an exciting new project.
わくわくして眠れない。Wakuwaku shite nemurenai.I'm too excited to sleep.

Tension ga agaru and moriagaru: energy and atmosphere

テンションが上がる (tenshon ga agaru) uses the English loanword tension, but in Japanese it means your energy or mood, not stress. Tenshon ga agaru means your spirits lift and you get hyped up; tenshon takai describes someone who is very energetic. It is casual and very common among younger speakers.

盛り上がる (moriagaru) means to liven up, and usually describes a group, a party, a conversation or a crowd rather than one person. Kinō no nomikai, moriagatta ne means "last night's drinks were a blast". Moriageru, the transitive form, means to liven something up yourself.

JapaneseRomajiMeaning
テンション上がる!Tenshon agaru!I'm so hyped!
雪を見てテンションが上がった。Yuki o mite tenshon ga agatta.Seeing the snow got me excited.
今日はテンション高いね。Kyō wa tenshon takai ne.You're full of energy today.
昨日の飲み会、盛り上がったね。Kinō no nomikai, moriagatta ne.Last night's drinks were lively.
会場がすごく盛り上がっています。Kaijō ga sugoku moriagatte imasu.The venue is buzzing.
みんなで盛り上げよう!Minna de moriageyō!Let's liven things up together!

Kōfun suru and its nuance trap

興奮する (kōfun suru) is the word dictionaries give for excited, and it means being worked up, stirred or stimulated. It is natural after a thrilling moment: a last-minute goal, a great concert, a close finish. Shiai, sugoi kōfun shita! is fine.

The trap is using kōfun for plans or everyday enthusiasm. Ryokō ni kōfun shite imasu, "I'm excited about the trip", sounds overwrought at best, and because kōfun also covers physical and sexual arousal, a bare kōfun shite imasu can make listeners smile or feel awkward. It can also describe being agitated or angry: kōfun shinaide, calm down. For anticipation, use tanoshimi or wakuwaku.

SituationNaturalAvoid
Trip next week楽しみ / わくわくする興奮している
Watching a close match興奮した / 盛り上がった楽しみ
Meeting a client next week楽しみにしておりますわくわくします
Party atmosphere盛り上がっている興奮している
Someone angry or agitated興奮している / 落ち着いてわくわくしている

Excited or nervous: dokidoki and kinchō

English "excited" sometimes includes nerves, as in excited about a first date. Japanese separates these. ドキドキ (dokidoki) is the sound of a pounding heart, and fits nerves, fear, suspense or romantic excitement. 緊張する (kinchō suru) means to be nervous or tense, as before an exam or a speech.

You can combine the feelings: dokidoki to wakuwaku ga majitte iru, a mix of nerves and excitement. For a date or a confession, dokidoki is the classic word. Our guide to saying you are scared covers the more fearful side.

JapaneseRomajiMeaning
ドキドキする。Dokidoki suru.My heart is pounding.
面接の前で緊張しています。Mensetsu no mae de kinchō shite imasu.I'm nervous before the interview.
初デートでドキドキした。Hatsu dēto de dokidoki shita.My heart was racing on the first date.
緊張するけど、楽しみでもある。Kinchō suru kedo, tanoshimi de mo aru.I'm nervous, but I'm excited too.
ハラハラする試合だった。Harahara suru shiai datta.It was a nail-biting match.

Saying it at work and in business

In a professional setting, excitement is usually expressed as looking forward to something, and wakuwaku or tenshon would sound too casual with clients. Tanoshimi ni shite orimasu and 期待しています (kitai shite imasu), "I have high hopes", are the standard options.

Kitai shite imasu is also what a manager might say to you: kitai shite iru yo, we're counting on you. Replying with kitai ni kotaerareru yō ganbarimasu, "I'll work hard to live up to it", is the classic response.

JapaneseRomajiMeaning
来週の打ち合わせを楽しみにしております。Raishū no uchiawase o tanoshimi ni shite orimasu.I look forward to next week's meeting.
新しいプロジェクトに期待しています。Atarashii purojekuto ni kitai shite imasu.I have high hopes for the new project.
ご一緒できるのを楽しみにしています。Go-issho dekiru no o tanoshimi ni shite imasu.I'm looking forward to working with you.
期待に応えられるよう頑張ります。Kitai ni kotaerareru yō ganbarimasu.I'll do my best to meet your expectations.

What people say back, and tone

When someone tells you they are excited, share it. Watashi mo tanoshimi!, I'm excited too, or ii ne!, sounds great, keeps the energy up. If it is their event, such as a trip, ask about it: doko ni iku no? Where are you going?

Tone is part of the meaning. Tanoshimi! with a rising, bright voice and a smile sounds genuinely excited; the same word said flatly can sound polite but lukewarm. Japanese speakers, especially in formal settings, often show excitement more quietly than English speakers, with a smile and a slightly faster pace rather than loud exclamations. Jumping or shouting is fine at a concert or festival, less so in an office.

JapaneseRomajiMeaning
私も楽しみ!Watashi mo tanoshimi!I'm excited too!
いいね!Ii ne!Sounds great!
楽しんできてね。Tanoshinde kite ne.Have a great time.
楽しみですね。Tanoshimi desu ne.That's something to look forward to. (polite)
どうだったか、また教えてね。Dō datta ka, mata oshiete ne.Tell me how it went.

Common mistakes

  • Using kōfun shite imasu for plans. Say tanoshimi desu or wakuwaku shimasu.
  • Using tanoshii for the future. Tanoshii is fun now; tanoshimi is looking forward.
  • Saying tenshon ga agaru to a client. It is casual; use tanoshimi ni shite orimasu.
  • Using moriagaru about yourself alone. It usually describes a group or atmosphere.
  • Using dokidoki for happy anticipation. Dokidoki is a racing heart, often nerves; use wakuwaku.
  • Reading tension as stress. In Japanese, tenshon means mood or energy.
Key points

A practical way to improve

Say four kinds of excitement out loud: ashita no ryokō, hontō ni tanoshimi! for a trip, wakuwaku shite kita for the night before, shiai, sugoku kōfun shita! after a match, and kinchō shite dokidoki shite imasu before a presentation. Then ask your AI Sensei in Unihongo's immersive 3D classroom to chat with you about an upcoming event, and practise saying you are excited in both casual and polite forms, plus responding when the Sensei says it first. The First Round at an Izakaya and Find a Friend at a Festival missions are good settings to practise moriagaru and tension ga agaru.

  1. 1

    Choose one clear goal

    Focus each session on a situation or skill you can actually use.

  2. 2

    Practice actively

    Say complete answers aloud instead of only reading or recognizing Japanese.

  3. 3

    Review and repeat

    Keep useful corrections and revisit the same skill until it feels natural.

FAQ

Frequently asked questions

What is the most natural way to say I'm excited in Japanese?

For something coming up, tanoshimi desu or tanoshimi ni shite imasu, "I'm looking forward to it", is the most natural. With friends, sugoku tanoshimi! or wakuwaku suru! expresses the excited feeling directly.

Is kōfun suru wrong for excited?

It is not wrong, but it is narrower than English "excited". Kōfun means being worked up or stimulated, and fits a thrilling game or a shocking moment. Out of context, watashi wa kōfun shite imasu can sound strange or even sexual, so use tanoshimi or wakuwaku for looking forward to things.

What does wakuwaku mean?

Wakuwaku is onomatopoeia for the bubbling, eager feeling of anticipation. Wakuwaku suru means "I'm excited" or "I can't wait". It sounds bright and friendly, and is fine in light polite speech too.

What is the difference between wakuwaku and dokidoki?

Wakuwaku is happy anticipation. Dokidoki is a pounding heart, which can come from nerves, fear or romantic excitement. Before a job interview you are dokidoki; before a holiday you are wakuwaku.

How do I say I'm excited politely at work?

Tanoshimi ni shite orimasu, "I am looking forward to it", is the standard polite phrase in business, for example before a meeting or project. It shows enthusiasm without sounding overexcited.

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