LESSON NOTES · レッスンノート

N5Talking to real people · Sep 20, 2026

Japanese words for happy: 嬉うれしい, 楽たのしい, 幸しあわせ and which one you actually mean

嬉うれしい is happy about a specific thing that happened to you, 楽たのしい is enjoying an activity while it is happening, and 幸しあわせ is the settled happiness of a whole life. Choosing wrong is not a grammar error — it is saying something you did not mean.

This is one of the first sets where English is genuinely less precise than Japanese, and it produces sentences that are technically correct and quietly strange. Telling someone 楽たのしいです when they give you a gift, or 幸しあわせです about a good lunch, both land oddly for reasons that are hard to explain after the fact — so it is worth getting the three apart now.

The basics

嬉うれしい — happy about something

A reaction. Something happened, and you feel good about it. It points outward at a cause.

プレゼント、嬉うれしいです! — I'm so happy with the present! (polite, warm — the standard reaction) 会あえて嬉うれしい。 — I'm happy to see you. (casual) 嬉うれしい気持きもちでいっぱいです。 — My heart is full. (polite — literally "I am full of happy feelings")

嬉うれしい is the word for gratitude, good news, someone remembering your birthday. It is about an event, and it can be momentary — you can be 嬉うれしい for five seconds.

楽たのしい — enjoyable

Not about you feeling good; about the activity being fun. It describes the thing, not the person.

昨日きのうのパーティーは楽たのしかった。 — Yesterday's party was fun. (casual) 日本語にほんごの勉強べんきょうは楽たのしいです。 — Studying Japanese is enjoyable. (polite)

This is why 楽たのしい usually sits next to an activity: パーティー, 旅行りょこう, 勉強べんきょう, 仕事しごと. If you can put "fun" in front of it in English, 楽たのしい is the word.

幸しあわせ — happy with life

The big one. A settled state covering your life or a long stretch of it, not a reaction to an event.

今いま、幸しあわせです。 — I'm happy right now — with how things are. (polite, weighty) 幸しあわせな家族かぞく。 — A happy family. (neutral)

幸しあわせ is a な-adjective, unlike the other two. It is also a heavier word than English "happy": saying 幸しあわせです in answer to "how are you?" would be a much bigger statement than the question invited.

Beyond the basics

The test that sorts all three

Ask what the happiness is attached to.

  • Attached to an event → 嬉うれしい
  • Attached to an activity → 楽たのしい
  • Attached to your life → 幸しあわせ

合格ごうかくして嬉うれしい。 — I'm happy I passed. (an event) この仕事しごとは楽たのしい。 — This job is enjoyable. (an activity) 家族かぞくがいて幸しあわせだ。 — I'm fortunate to have my family. (a life)

The same situation can take different words depending on what you point at: 旅行りょこうは楽たのしかった (the trip was fun) and 行いけて嬉うれしかった (I was glad I could go) are both true about one holiday.

You cannot say 嬉うれしい about other people

Like all Japanese emotion adjectives, 嬉うれしい and 楽たのしい describe feelings you have direct access to — your own. For someone else, you need a hedge or the がる form.

彼かれは嬉うれしそうです。 — He looks happy. (polite — そう marks appearance) 子こどもが嬉うれしがっている。 — The child is showing delight. (neutral — がる for third-person feelings)

This is a general rule of Japanese rather than something about these particular words, and the full explanation is in ほしい vs たい.

The casual and emphatic versions

Real speech rarely stops at the dictionary form.

  • 嬉うれしい! — on its own, as an exclamation. Extremely common.
  • 超ちょう嬉うれしい / めっちゃ嬉うれしい — "super happy". 超ちょう nationally, めっちゃ originally Kansai and now everywhere.
  • 楽たのしみ — looking forward to something. A different word, formed from 楽たのしい, and one of the most useful nouns in the language: 楽たのしみにしています.

来週らいしゅうの旅行りょこうが楽たのしみです。 — I'm looking forward to next week's trip. (polite)

Note the difference: 楽たのしい is enjoying now; 楽たのしみ is anticipating later. Mixing them up is very common.

嬉うれしい vs ありがたい

ありがたい means grateful — literally "hard to exist", i.e. rare and therefore precious. When someone does you a favour, both work, but they say different things.

手伝てつだってくれて嬉うれしい。 — I'm happy you helped me. (focus on your feeling) 手伝てつだってくれてありがたい。 — I'm grateful you helped me. (focus on their kindness)

ありがたい is the more adult of the two in a work context, and ありがとう is its close relative — the full picture is in how to say thank you in Japanese.

幸しあわせ vs 幸運こううん vs ラッキー

幸しあわせ is happiness. 幸運こううん (こううん) and ラッキー are luck, and they are not the same claim.

ラッキー! — Lucky! (casual — a good break) 幸運こううんを祈いのります。 — I wish you good luck. (formal, written)

Saying 幸しあわせ about winning a raffle overstates it considerably.

Common mistakes

  • Saying 楽たのしいです when given a gift. The gift is not an activity. 嬉うれしいです is the reaction word.
  • Saying 幸しあわせです about a good meal. 幸しあわせ covers your life. For a meal, 美味おいしかった or 嬉うれしい.
  • Using 楽たのしみ and 楽たのしい interchangeably. 楽たのしみ is anticipation; 楽たのしい is enjoyment happening now.
  • Saying 彼かれは嬉うれしいです. For another person you need 嬉うれしそう or 嬉うれしがっている.
  • Treating 幸しあわせ as an い-adjective. It is a な-adjective: 幸しあわせな人ひと, not 幸しあわせい.

The three-way table

Word Attached to Type Example
嬉うれしい An event い-adjective プレゼント、嬉うれしい
楽たのしい An activity い-adjective パーティーが楽たのしい
幸しあわせ Your life な-adjective 今いま、幸しあわせです
楽たのしみ Something coming Noun 旅行りょこうが楽たのしみ
ありがたい Someone's kindness い-adjective 手伝てつだってくれてありがたい

FAQ

Which one do I use when someone gives me a present? 嬉うれしいです. It is a reaction to an event, and it is warmer than ありがとう alone — many people say both.

Can I say 幸しあわせ to my partner? Yes, and it carries real weight. 一緒いっしょにいられて幸しあわせ is a serious, sincere thing to say, not a casual one.

What is the noun form of 嬉うれしい? 嬉うれしさ, "the degree of happiness", used mostly in writing. In speech people restructure the sentence instead.

How do I say "I had fun today"? 今日きょうは楽たのしかったです. Past tense of 楽たのしい, and a very common closing line for a day out or a lesson.

Is めっちゃ rude? No, just casual and slightly regional in flavour. Avoid it in business Japanese; it is fine with friends.

What is 幸しあわせ者もの? "A fortunate person" — 幸しあわせ者ものです is a modest, slightly old-fashioned way of saying you are lucky in life.

Practice

Build each answer before opening it. Questions 1 and 2 are a pair — the same day, two different words.

1. Someone gives you a present. React.

Show answer

嬉うれしいです — a reaction to an event. This is the pair to question 2.

2. Say yesterday's party was fun.

Show answer

昨日きのうのパーティーは楽たのしかった — an activity, so 楽たのしい. This is the pair to question 1.

3. Something is wrong here: いいランチで幸しあわせです。

Show answer

美味おいしかったです or 嬉うれしいです — 幸しあわせ covers your whole life, which is a lot to claim about a lunch.

4. Say you're looking forward to next week's trip.

Show answer

来週らいしゅうの旅行りょこうが楽たのしみです — 楽たのしみ is anticipation, not enjoyment happening now.

5. Something is wrong here: 彼かれは嬉うれしいです。

Show answer

彼かれは嬉うれしそうです — you cannot state another person's feelings as fact. そう marks appearance.

6. Say "I'm happy I passed."

Show answer

合格ごうかくして嬉うれしい — passing is an event.

7. Say "this job is enjoyable."

Show answer

この仕事しごとは楽たのしい — a job is an activity.

8. Thank a colleague for helping, focusing on their kindness.

Show answer

手伝てつだってくれてありがたい — 嬉うれしい would put the focus on your own feeling instead.

9. Say "I had fun today" at the end of a lesson.

Show answer

今日きょうは楽たのしかったです — a very common closing line.

10. Which is the な-adjective: 嬉うれしい, 楽たのしい or 幸しあわせ?

Show answer

幸しあわせ — 幸しあわせな人ひと. The other two are い-adjectives.

Vocabulary from this article

Tap the block to select all of it, then copy. In Anki: File → Import, note type Basic, separator Tab — the first column becomes the front, the second the back.

嬉しい	うれしい — happy (about something)
楽しい	たのしい — enjoyable, fun
楽しみ	たのしみ — something to look forward to
幸せ	しあわせ — happy, fortunate (in life)
幸運	こううん — good luck
ありがたい	ありがたい — grateful, much appreciated
合格	ごうかく — passing an exam
旅行	りょこう — trip, travel
家族	かぞく — family
仕事	しごと — work, job
手伝う	てつだう — to help
勉強	べんきょう — study
会う	あう — to meet
来週	らいしゅう — next week
昨日	きのう — yesterday
気持ち	きもち — feeling

I'm Yuuki, a Japanese teacher based in Tokyo. I've taught on italki as a Top 1% teacher and watched over 1,500 anime. 楽たのしみにしています is the phrase I most often add to a student's vocabulary in the first month — it ends a message warmly, and it is the one of these four they never arrive with.

Book a trial lesson · $13

Sources: the author's own lessons and standard reference grammars.

More drills like the ones above, plus a timed JLPT-style mock test: Practice · N5

Want to try this in a real conversation?

30-minute trial lesson, $13. Times shown in your own timezone.

Book a trial lesson · $13