Korean Word of the Day: 심심하다 (simsimhada) — When You've Got Time to Spare and Nothing to Fill It With
Sunday afternoon. Everything on your to-do list is done, and you have no plans. You lie on the couch turning your phone on, then off, then open the fridge and close it again. At moments like this, there’s one phrase that comes out of a Korean person’s mouth almost automatically. 심심하다 (simsimhada) means to be bored and unamused because there’s nothing to do. It’s the word for that empty state — when you have time left over but nothing to fill it with.
Korean textbooks usually introduce it bundled together with 지루하다 (jiruhada), but if you count how often Koreans actually say each one over the course of a day, 심심하다 is way out in front. It’s what a kid says to a parent about ten times a day. It’s the excuse to message a friend. And it’s what you reach for when sizing up a shirt you just bought or a movie you just watched. Today we’ll look at exactly what emotional temperature this word travels at — and where you shouldn’t use it.
심심하다 (simsimhada)
The core of 심심하다 (simsimhada) is emptiness. It’s not that you’re doing something and the something is no fun — it’s the boredom that comes from having nothing to do in the first place. That difference matters. A person sitting through a two-hour meeting isn’t 심심한 — they’re 지루한. The person who’s 심심한 is the one whose meeting just ended with 30 minutes left before they can go home and nothing to do with them.
The emotional weight is light, too. It doesn’t hurt like 외롭다 (oeropda, “to be lonely”), and it isn’t heavy like 괴롭다 (goeropda, “to be distressed”). So 심심하다 is less a complaint than a signal. It means: “I’m empty right now — got anything fun?” In Korea, this word often doubles as an invitation.
One more thing. You don’t use it only for people. It also applies to movies, paintings, songs, clothes, interiors — anything that lacks stimulation and comes across as flat. Used that way, it’s softer than 지루하다 (jiruhada) and more polite than 별로다 (byeollo-da, “meh, not great”).
Checking it in the National Institute of Korean Language dictionary
심심하다 (simsimhada) (adjective) Bored and having a dull time because one has nothing to do. [en] bored — Feeling weary and having a dull time because one has nothing to do. [ja] たいくつだ【退屈だ】。つまらない【詰まらない】 — やることがなくて、楽しくない。 [es] aburrido, desganado, fastidiado — Que está desanimado y aburrido porque no tiene nada que hacer. [zh] 无聊 — 没有可做的事，没有意思，很乏味。 — National Institute of Korean Language, Basic Korean Dictionary (krdict.korean.go.kr)
※ Portuguese isn’t included in the dictionary above, so we’re adding our own translation: entediado — Que se sente desanimado e acha o tempo maçante por não ter nada para fazer.
Let’s go through the real usage examples listed in the dictionary one by one. These short sentences contain just about everything you need to know about how this word works.
민준이가 심심하다거든 이 책을 읽으라고 하세요. (Minjun-iga simsimhadageodeun i chaegeul ilgeurago haseyo.) If Minjun says he’s bored, tell him to read this book. — National Institute of Korean Language, Basic Korean Dictionary (krdict.korean.go.kr)
This is a scene of an adult handing a bored child a solution. It shows nicely that in Korea, 심심하다 is the kind of thing people around you respond to. It’s not an emotion you swallow alone — it’s a word you put out into the room.
유민이는 외동딸이라 동기가 없어서 집에 있으면 심심하다고 말했다. (Yumin-ineun oedongttal-ira donggi-ga eopseoseo jibe isseumyeon simsimhadago malhaetda.) Yumin said that since she’s an only daughter with no siblings, she gets bored at home. — National Institute of Korean Language, Basic Korean Dictionary (krdict.korean.go.kr)
동기 (donggi, 同氣) means siblings. The sense is that with nobody to play with, time goes empty — an example that shows where 심심하다 brushes up against 외롭다 (oeropda, “lonely”). Even here, though, the tone is less sad than simply bored.
지겹고 심심하다. (jigyeopgo simsimhada.) It’s tiresome and boring. — National Institute of Korean Language, Basic Korean Dictionary (krdict.korean.go.kr)
Here it’s paired with 지겹다 (jigyeopda, “to be so sick of something you can’t stand it”). You can see that when the same state drags on long enough, these two words start traveling together.
영화가 심심하다. (yeonghwaga simsimhada.) The movie is bland. — National Institute of Korean Language, Basic Korean Dictionary (krdict.korean.go.kr)
An example applied not to a person but to a work of art. It means “not entertaining,” but far more indirectly. “영화가 재미없었어” (“the movie wasn’t good”) is a verdict; “영화가 좀 심심했어” (“the movie was a little bland”) leaves room.
지수는 조용한 노래들은 심심하다며 싫어했다. (Jisu-neun joyonghan noraedeureun simsimhadamyeo sireohaetda.) Jisu said quiet songs were bland and didn’t like them. — National Institute of Korean Language, Basic Korean Dictionary (krdict.korean.go.kr)
It works exactly the same way for talking about musical taste. Quiet song = song with little stimulation = 심심한 song. The connection is completely natural in Korean.
Seeing it in real conversation
Setting: The first day of the Chuseok holiday. Jun-kyung’s car has been stuck in highway traffic for three hours now.
Jun-kyung: 아직도 이만큼 남았어. 아까 그 국도로 빠질걸 그랬나. We’ve still got this much to go. Maybe we should’ve taken that side road.
Emily: 괜찮아. 근데 나 슬슬 심심해. 라디오에서 아까 그 노래 또 나와. It’s fine. But I’m starting to get bored. The radio’s playing that same song again.
Jun-kyung: 그럼 끝말잇기 할까? 아니면 다음 휴게소에서 호두과자. Then want to play word chain? Or walnut cakes at the next rest stop.
Emily: 호두과자! …근데 안 심심해? 세 시간째 운전만 하잖아. Walnut cakes! …But aren’t you bored? You’ve been driving for three hours straight.
Jun-kyung: 난 핸들 잡고 있으면 그런 생각 할 틈이 없더라. When I’ve got my hands on the wheel, I don’t even have room to think about that.
Emily: 부럽다. 그럼 내가 음악 틀게. 심심한 발라드 말고 신나는 걸로. Lucky you. Then I’ll put music on. Not some bland ballad — something upbeat.
Take a close look at that last line. The first two uses described a person’s state; the last one is attached to a song. Stick the same word on a person and it means “I’ve got nothing to do”; stick it on a thing and it means “this is flat.”
This sounds off in Korean
✗ (About a meeting your team leader ran) 부장님, 오늘 회의 좀 심심했습니다. (bujangnim, oneul hoeui jom simsimhaetseumnida.) — Sir, today’s meeting was a bit bland. ✓ (To a coworker) 야, 오늘 회의 좀 심심하지 않았냐? (ya, oneul hoeui jom simsimhaji anhannya?) — Hey, wasn’t today’s meeting kind of bland? → Said to your boss, it becomes a judgment that the event they put together was “flat.” With someone senior to you, it’s safer to turn the comment back toward yourself instead of evaluating them — something like 내용이 좀 어려웠습니다 (naeyongi jom eoryeowotseumnida, “the content was a bit difficult for me”).
✗ (To a friend who reached out first after a long time) 잘됐다, 나도 마침 심심했어. (jaldwaetda, nado machim simsimhaesseo.) — Great timing, I was bored anyway. ✓ (Same situation) 안 그래도 연락하려고 했는데, 잘됐다. (an geuraedo yeollakaryeogo haenneunde, jaldwaetda.) — I was just about to message you — perfect timing. → The grammar is flawless, but the temperature is wrong. “I’m meeting you because I’m bored” carries the nuance of treating the other person as a 심심풀이 (simsimpuri) — a way to kill time — so a line meant to express delight ends up leaving a sting. Between people who are already close it works as a joke; with someone you haven’t spoken to in a while, it’s risky.
Example sentences by situation
① A child to a parent (a signal that means “do something”) Rainy Saturday afternoon. The kid has circled the living room three times and finally says:
엄마, 나 심심해. 우리 뭐 해? (eomma, na simsimhae. uri mwo hae?) Mom, I’m bored. What should we do?
This isn’t information — it’s a request. When Korean parents hear it, they generally put something in the kid’s hands, whether that’s a game or an errand.
② Reviewing a drama (a gentle pan) When you’ve finished a series a friend recommended and want to say you were let down — softly.
1화는 재밌었는데 뒤로 갈수록 좀 심심하더라. (ilhwa-neun jaemi-isseonneunde dwiro galsurok jom simsimhadeora.) The first episode was fun, but it got a bit bland toward the end.
Saying 재미없다 (jaemieopda, “it wasn’t fun”) feels like rejecting the taste of the friend who recommended it. Using 심심하다 lands closer to “it wasn’t quite stimulating enough for my palate.”
③ Objects and design (“plain”) To a friend standing in front of the mirror in a new white T-shirt.
괜찮은데 좀 심심하다. 목걸이 하나만 해 봐. (gwaenchanheunde jom simsimhada. mokgeori hanaman hae bwa.) It’s fine, but a bit plain. Try adding a necklace.
Clothes, room decor, cake decoration, even slide decks — it covers the whole range of “nothing wrong with it, but there’s nothing to catch the eye.”
Polite and casual forms, plus similar expressions
The casual form is 심심해 (simsimhae), and the polite form is 심심해요 (simsimhaeyo). Grammatically, 심심합니다 (simsimhamnida) is also possible, but in practice it’s almost never used. Saying 저는 지금 심심합니다 (jeoneun jigeum simsimhamnida) in formal style sounds like you’re declaring at a meeting that you’re bored — awkward. If you have to describe that state in front of someone senior, it’s more natural to steer toward 시간이 좀 남네요 (sigani jom namneyo, “I’ve got some time to spare”) or 조금 무료하네요 (jogeum muryohaneyo, “I’m feeling a bit idle”).
| Expression | Temperature / intensity | Where it’s used |
|---|---|---|
| 심심하다 (simsimhada) | Light. The empty state of having nothing to do | Everyday life across the board. For people and for things alike |
| 지루하다 (jiruhada) | Medium. Something you’re in the middle of is long and no fun | Meetings, classes, movies — when the thing boring you is clear |
| 따분하다 (ttabunhada) | Boredom plus stuffiness. A little stronger | Speech and writing both. Also used for a mood or a person |
| 무료하다 (muryohada) | Calm and literary | Writing, older speakers. Rare in everyday conversation |
| 노잼이다 (nojaemida) | Light and playful | Peers, social media. Not used with people senior to you |
The pair that trips learners up most is 심심하다 and 지루하다. There’s just one test. If you’re doing something, it’s 지루하다; if you have nothing to do, it’s 심심하다. In the middle of a three-hour movie, you’re 지루한. Home after the movie with nothing left to do, you’re 심심한.
Cultural background — 심심풀이 and the two “심심”
Korean has a word called 심심풀이 (simsimpuri). It literally means “undoing your boredom,” and it refers to any small thing you do to pass the time. You’ll hear it in phrases like 심심풀이로 시작한 게임 (simsimpuri-ro sijakan geim, “a game I started just to kill time”) or 심심풀이 땅콩 (simsimpuri ttangkong, “peanuts to snack on out of boredom”). The very existence of this word is interesting, because it means that in Korean culture, boredom isn’t something you endure — it’s something you “undo,” a state to be resolved.
Which is why boredom so often turns into connection. 심심한데 나올래? (simsimhande naollae?, “I’m bored — want to come out?”) is one of the most common ways Korean friends propose plans. As we saw above, though, this only works if you’re already comfortable with each other.
There’s one more thing to watch out for. Korean has a separate 심심하다 that sounds identical but means something different. It describes food that tastes a little under-seasoned, so if someone takes a spoonful of soup and says 국이 좀 심심하네 (gugi jom simsimhane), they’re not saying it’s boring — they’re saying it needs salt. It’s a completely separate dictionary entry from the word we covered today, so when it comes up at the dinner table, think “salt.”
On top of that, there’s also the Sino-Korean 심심 (甚深). It means “very deep,” so 심심한 사과 (simsimhan sagwa) is a polite way of saying “my deepest apologies.” In 2022, though, this phrase became a big talking point online in Korea when some people read it as “a boring apology.” Even Korean speakers get tangled up here — so if it confuses you as a learner, that’s not a sign your Korean is lacking.
In dramas, 심심하다 is often used as a device to open a story. The main character, alone in their room, mutters “아, 심심해” (a, simsimhae) — and in the next scene they’re out the door, and that’s where the plot begins. The screen is showing you exactly what this word means: not a full stop, but the moment right before someone moves.
Today’s quiz
A friend recommended a two-hour documentary and you watched the whole thing, but you kept dozing off from the halfway point on. What’s the most natural way to share your reaction without hurting your friend’s feelings?
- 그거 진짜 노잼이더라. (geugeo jinjja nojaemideora.) — That thing was seriously boring.
- 후반부는 나한테 좀 심심하더라. (hubanbu-neun nahante jom simsimhadeora.) — The second half was a little bland for me.
- 저는 그 다큐멘터리가 심심합니다. (jeoneun geu dakyumenteoriga simsimhamnida.) — I find that documentary boring.
Answer: 2
Option 1, 노잼 (nojaem), is peer-group slang, so it’s technically possible — but in front of the person who recommended it, it’s a flat verdict that writes off the whole thing. Option 3 uses the awkward formal 심심합니다, and the tense doesn’t match either. Option 2 adds 나한테 (nahante, “for me”) to frame it as a matter of personal taste, dials the intensity down with 심심하다, and uses -더라 to convey only what you personally experienced. That’s three layers of cushioning.
Definitions and example sentences are from the National Institute of Korean Language’s Basic Korean Dictionary (krdict.korean.go.kr); that portion of this post, including our translations, is licensed under CC BY-SA 2.0 KR.