Adjectives · 하다 word

따뜻하다 conjugation

to be warm · ttatteutada · sounds like [따뜨타다]

Short answer: “Warm” in Korean is 따뜻하다 (ttatteutada). Polite present: 따뜻해요 (ttatteutaeyo); past: 따뜻했어요 (ttatteutaesseoyo); future: 따뜻할 거예요. It is a 하다 adjective: 하 + 아/어 always becomes 해.

Present따뜻해요[따뜨태요] · ttatteutaeyo
Past따뜻했어요[따뜨태써요] · ttatteutaesseoyo
Future따뜻할 거예요[따뜨탈 꺼예요] · ttatteutal geoyeyo
Negative안 따뜻해요[안 따뜨태요] · an ttatteutaeyo

따뜻하다 in sentences

오늘은 날씨가 따뜻해요.It’s warm today.
따뜻한 커피 한 잔 주세요.A hot coffee, please.

All forms of 따뜻하다

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	따뜻해요	[따뜨태요]	ttatteutaeyo
formal-(스)ㅂ니다	따뜻합니다	[따뜨탐니다]	ttatteutamnida
casual-아/어	따뜻해	[따뜨태]	ttatteutae
plain (written)-다	따뜻하다	[따뜨타다]	ttatteutada
formal question-(스)ㅂ니까?	따뜻합니까?	[따뜨탐니까]	ttatteutamnikka?

Past
Form	Korean	Sounds like	Romanized
polite-았/었어요	따뜻했어요	[따뜨태써요]	ttatteutaesseoyo
formal-았/었습니다	따뜻했습니다	[따뜨탣씀니다]	ttatteutaetseumnida
casual-았/었어	따뜻했어	[따뜨태써]	ttatteutaesseo
plain (written)-았/었다	따뜻했다	[따뜨탣따]	ttatteutaetda

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

Negative
Form	Korean	Sounds like	Romanized
not (short)안 …	안 따뜻해요	[안 따뜨태요]	an ttatteutaeyo
did not안 …았/었어요	안 따뜻했어요	[안 따뜨태써요]	an ttatteutaesseoyo
not (long)-지 않아요	따뜻하지 않아요	[따뜨타지 아나요]	ttatteutaji 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	따뜻하세요	[따뜨타세요]	ttatteutaseyo
honorific — past-(으)셨어요	따뜻하셨어요	[따뜨타셔써요]	ttatteutasyeosseoyo
honorific — formal-(으)십니다	따뜻하십니다	[따뜨타심니다]	ttatteutasimnida

Connecting
Form	Korean	Sounds like	Romanized
… and-고	따뜻하고	[따뜨타고]	ttatteutago
… so / and then-아/어서	따뜻해서	[따뜨태서]	ttatteutaeseo
if …-(으)면	따뜻하면	[따뜨타면]	ttatteutamyeon
… but-지만	따뜻하지만	[따뜨타지만]	ttatteutajiman
because …-(으)니까	따뜻하니까	[따뜨타니까]	ttatteutanikka
… and / but (background)-(으)ㄴ데	따뜻한데	[따뜨탄데]	ttatteutande
even if …-아/어도	따뜻해도	[따뜨태도]	ttatteutaedo
while …-(으)면서	따뜻하면서	[따뜨타면서]	ttatteutamyeonseo

Describing a noun
These go before a noun: “the food (that) I ate”, “a cold day”.
Form	Korean	Sounds like	Romanized
(that is) …-(으)ㄴ	따뜻한	[따뜨탄]	ttatteutan
(that) will …-(으)ㄹ	따뜻할	[따뜨탈]	ttatteutal

Useful patterns
Form	Korean	Sounds like	Romanized
can be …-(으)ㄹ 수 있어요	따뜻할 수 있어요	[따뜨탈 쑤 이써요]	ttatteutal su isseoyo
cannot be …-(으)ㄹ 수 없어요	따뜻할 수 없어요	[따뜨탈 쑤 업써요]	ttatteutal su eopseoyo
have to be …-아/어야 해요	따뜻해야 해요	[따뜨태야 해요]	ttatteutaeya haeyo
it’s OK if it’s …-아/어도 돼요	따뜻해도 돼요	[따뜨태도 돼요]	ttatteutaedo dwaeyo
…ly (adverb)-게	따뜻하게	[따뜨타게]	ttatteutage
becomes …-아/어지다	따뜻해져요	[따뜨태저요]	ttatteutaejeoyo
…ing (noun)-기	따뜻하기	[따뜨타기]	ttatteutagi

How 따뜻하다 changes

Every 하다 word works the same way: 하 + 여 becomes 해 → 따뜻해요, 따뜻했어요. With other endings 하 stays as it is: 따뜻합니다, 따뜻하면.

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

Questions

How do you say “warm” in Korean?

“Warm” is 따뜻하다 (ttatteutada), pronounced [따뜨타다]. In a sentence: 오늘은 날씨가 따뜻해요. — It’s warm today.

What is the past tense of 따뜻하다?

따뜻했어요 (ttatteutaesseoyo) is the polite past tense of 따뜻하다 (“to be warm”). Formal: 따뜻했습니다; casual: 따뜻했어.

How do you say 따뜻하다 politely?

Everyday polite: 따뜻해요 (ttatteutaeyo). Formal: 따뜻합니다. Casual, with close friends: 따뜻해.

How do you say “not warm” in Korean?

안 따뜻해요 or 따뜻하지 않아요. Both mean the same; the first is more common in speech.

Is 따뜻하다 irregular?

No. Every 하다 word works the same way: 하 + 여 becomes 해 → 따뜻해요, 따뜻했어요. With other endings 하 stays as it is: 따뜻합니다, 따뜻하면.

More 하다 words like 따뜻하다

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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