Adjectives · Regular (있다 type)

재미없다 conjugation

to be boring; not fun · jaemieopda · sounds like [재미업따]

Short answer: “Boring” in Korean is 재미없다 (jaemieopda), which also means not fun. Polite present: 재미없어요 (jaemieopseoyo); past: 재미없었어요 (jaemieopseosseoyo); future: 재미없을 거예요. It is regular.

Present재미없어요[재미업써요] · jaemieopseoyo
Past재미없었어요[재미업써써요] · jaemieopseosseoyo
Future재미없을 거예요[재미업쓸 꺼예요] · jaemieopseul geoyeyo
Negative재미없지 않아요[재미업찌 아나요] · jaemieopji anayo

Opposite: 재미있다 — to be fun

재미없다 in sentences

그 영화는 재미없었어요.That movie was boring.
이 수업은 재미없어요.This class is boring.

All forms of 재미없다

Present
Polite (해요) is the everyday safe choice; formal (합니다) is for news, announcements and work; casual (반말) is for close friends and younger people.
Form	Korean	Sounds like	Romanized
polite-아/어요	재미없어요	[재미업써요]	jaemieopseoyo
formal-(스)ㅂ니다	재미없습니다	[재미업씀니다]	jaemieopseumnida
casual-아/어	재미없어	[재미업써]	jaemieopseo
plain (written)-다	재미없다	[재미업따]	jaemieopda
formal question-(스)ㅂ니까?	재미없습니까?	[재미업씀니까]	jaemieopseumnikka?

Past
Form	Korean	Sounds like	Romanized
polite-았/었어요	재미없었어요	[재미업써써요]	jaemieopseosseoyo
formal-았/었습니다	재미없었습니다	[재미업썯씀니다]	jaemieopseotseumnida
casual-았/었어	재미없었어	[재미업써써]	jaemieopseosseo
plain (written)-았/었다	재미없었다	[재미업썯따]	jaemieopseotda

Future
Form	Korean	Sounds like	Romanized
polite — will probably be-(으)ㄹ 거예요	재미없을 거예요	[재미업쓸 꺼예요]	jaemieopseul geoyeyo
formal-(으)ㄹ 겁니다	재미없을 겁니다	[재미업쓸 껌니다]	jaemieopseul geomnida
casual-(으)ㄹ 거야	재미없을 거야	[재미업쓸 꺼야]	jaemieopseul geoya

Negative
Form	Korean	Sounds like	Romanized
not (long)-지 않아요	재미없지 않아요	[재미업찌 아나요]	jaemieopji anayo

Honorific
Add -(으)시- when the subject is someone you respect (a teacher, a customer, an older person) — not yourself.
Form	Korean	Sounds like	Romanized
honorific — present-(으)세요	재미없으세요	[재미업쓰세요]	jaemieopseuseyo
honorific — past-(으)셨어요	재미없으셨어요	[재미업쓰셔써요]	jaemieopseusyeosseoyo
honorific — formal-(으)십니다	재미없으십니다	[재미업쓰심니다]	jaemieopseusimnida

Connecting
Form	Korean	Sounds like	Romanized
… and-고	재미없고	[재미업꼬]	jaemieopgo
… so / and then-아/어서	재미없어서	[재미업써서]	jaemieopseoseo
if …-(으)면	재미없으면	[재미업쓰면]	jaemieopseumyeon
… but-지만	재미없지만	[재미업찌만]	jaemieopjiman
because …-(으)니까	재미없으니까	[재미업쓰니까]	jaemieopseunikka
… and / but (background)-는데	재미없는데	[재미엄는데]	jaemieomneunde
even if …-아/어도	재미없어도	[재미업써도]	jaemieopseodo
while …-(으)면서	재미없으면서	[재미업쓰면서]	jaemieopseumyeonseo

Describing a noun
These go before a noun: “the food (that) I ate”, “a cold day”.
Form	Korean	Sounds like	Romanized
(that) …-는	재미없는	[재미엄는]	jaemieomneun
(that) will …-(으)ㄹ	재미없을	[재미업쓸]	jaemieopseul

Useful patterns
Form	Korean	Sounds like	Romanized
can be …-(으)ㄹ 수 있어요	재미없을 수 있어요	[재미업쓸 쑤 이써요]	jaemieopseul su isseoyo
cannot be …-(으)ㄹ 수 없어요	재미없을 수 없어요	[재미업쓸 쑤 업써요]	jaemieopseul su eopseoyo
have to be …-아/어야 해요	재미없어야 해요	[재미업써야 해요]	jaemieopseoya haeyo
it’s OK if it’s …-아/어도 돼요	재미없어도 돼요	[재미업써도 돼요]	jaemieopseodo dwaeyo
…ing (noun)-기	재미없기	[재미업끼]	jaemieopgi

How 재미없다 changes

재미없다 is built on 있다 / 없다, so like a verb it describes with -는: 재미없는, 재미없는데. Its other endings are regular: 재미없어요, 재미없으면.

How every verb type works → · Why it sounds like that →

Questions

How do you say “boring” in Korean?

“Boring” is 재미없다 (jaemieopda), pronounced [재미업따]. In a sentence: 그 영화는 재미없었어요. — That movie was boring.

What is the past tense of 재미없다?

재미없었어요 (jaemieopseosseoyo) is the polite past tense of 재미없다 (“to be boring”). Formal: 재미없었습니다; casual: 재미없었어.

How do you say 재미없다 politely?

Everyday polite: 재미없어요 (jaemieopseoyo). Formal: 재미없습니다. Casual, with close friends: 재미없어.

Is 재미없다 irregular?

No. 재미없다 is built on 있다 / 없다, so like a verb it describes with -는: 재미없는, 재미없는데. Its other endings are regular: 재미없어요, 재미없으면.

More 있다 / 없다 words like 재미없다

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Forms follow 한글 맞춤법 (Korean spelling rules); pronunciation follows 표준 발음법 and romanization follows 국어의 로마자 표기법 (Revised Romanization). Last updated October 16, 2026. How we check