적당하다 Korean adjective conjugation
to be suitable, appropriate
Every form of 적당하다 across the four speech levels. It is 여 irregular — 하다 and every verb built on it: 하다 → 하여 → 해요.
기본형Principal parts
The four forms the dictionary prints. Every other form on this page is derived from them.
- 관형사형Modifier
- 적당한
- 아/어Infinitive
- 적당해
- -으니Since
- 적당하니
- 합니다Formal
- 적당합니다
현재Present
The tense that does the most work. 해요체 is the one to learn first — it is polite without being formal, and it is what most conversation is in.
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 적당해요 | 적당합니다 | 적당해 | 적당하다 |
과거Past
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 적당했어요 | 적당했습니다 | 적당했어 | 적당했다 |
미래·추측Future & presumptive
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| -겠-Will / must be | 적당하겠어요 | 적당하겠습니다 | 적당하겠어 | 적당하겠다 |
| -을 것이다Going to | 적당할 거예요 | 적당할 것입니다 | 적당할 거야 | 적당할 것이다 |
의문Questions
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 적당해요? | 적당합니까? | 적당해? | 적당하니? |
| 과거Past | 적당했어요? | 적당했습니까? | 적당했어? | 적당했니? |
부정Negation
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 안Not (short) | 안 적당해요 | 안 적당합니다 | 안 적당해 | 안 적당하다 |
| -지 않다Not (long) | 적당하지 않아요 | 적당하지 않습니다 | 적당하지 않아 | 적당하지 않다 |
높임Honorific
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 적당하세요 | 적당하십니다 | 적당하셔 | 적당하시다 |
| 과거Past | 적당하셨어요 | 적당하셨습니다 | 적당하셨어 | 적당하셨다 |
관형사형Modifying a noun
- 현재Present
- 적당한
- 과거Past
- 적당한
- 미래Future
- 적당할
- 회상Used to
- 적당하던
연결Joining clauses
- -고and
- 적당하고
- -게-ly / so that
- 적당하게
- -어서so / and then
- 적당해서
- -으니까since
- 적당하니까
- -으면if / when
- 적당하면
- -지만but
- 적당하지만
- -는데and / but (setting up)
- 적당한데
- -어도even if
- 적당해도
문형Sentence patterns
How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.
- 1이 2에/에게 적당하다
- 1이 적당하다
예문In real sentences
From the dictionary, each with its translation.
적당하네요. 원에 가까워 보입니다.
That's fair enough. That's close enough to a circle
그래서 적당한 방법을 하나 찾았는데요.
We thought we were getting somewhere.
적당한 정도의 스트레스를 경험하신 분은요?
How about a moderate amount of stress?
달은 적당한 크기로서 크지만 너무 크지는 않아요.
The moon is just the right size: big but not too big.
자주 묻는 질문Common questions
How do you conjugate 적당하다 in Korean?
적당하다 (to be suitable, appropriate) is 적당해요 in the polite 해요체, 적당합니다 in formal 합니다체, 적당해 in casual 반말 and 적당하다 in the plain written style. The past is 적당했어요.
What is the past tense of 적당하다?
적당했어요 in everyday polite speech, 적당했습니다 formally. It is built from the 아/어 form 적당하여 plus ㅆ, which is why an irregular stem shows its irregularity here.
Is 적당하다 irregular?
Yes — it is 여 irregular (여 불규칙). 하다 and every verb built on it: 하다 → 하여 → 해요. That is why the stem looks different in 적당하여 and 적당하니 but unchanged in 적당합니다.
What TOPIK level is 적당하다?
2급 — TOPIK 2, elementary.
Dictionary form, meaning, sentence patterns, examples and audio from the 국립국어원 한국어기초사전, used under CC BY-SA 2.0 KR.
Conjugations are generated by this site's own engine and checked against the 9,380 forms the dictionary publishes on every build.