Korean 있다 없다 Adjectives: Why 맛있다 Takes -는, Not -은

What you'll learn

• Conjugate 맛있다, 재미있다, 멋있다 and their 없다 opposites in the polite present, the past and the form before a noun.
• Explain why the modifier ends in -는 and spot the error 맛있은.
• Use the short form 재밌다 and know where the full form is safer.
• Say "I don't mind" and "it's no use" with 상관없다 and 소용없다.

Prerequisites: you know the difference between verbs and adjectives from verbs vs adjectives. Time: about 25 minutes.

The first section lists the words that belong to this family.

Which Words Count as Korean 있다 없다 Adjectives?

Korean has a family of adjectives made from a noun plus 있다 ("to exist, to have") or 없다 ("not to exist, not to have"). 맛있다 is literally "taste exists" and 재미없다 is "fun does not exist". Most are written as one word, but a few common phrases keep a space and are not single adjectives.

Spacing matters in writing. 맛있다 and 상관없다 are single dictionary entries, so they have no space. 필요 없다 and 의미 있다 are a noun followed by the separate word 있다 or 없다, so they keep the space. All of them, spaced or not, take -는, as the next section explains.

Why Is the Modifier 맛있는 and Not 맛있은?

The modifier is 맛있는 because the last part of the word is 있다, and 있다 and 없다 always take the verb modifier -는, never the adjective modifier -(으)ㄴ. A compound keeps the grammar of its last word, so every -있다 and -없다 adjective inherits the -는: 맛있는, 재미없는, 상관없는.

Ordinary adjectives work differently. 좋다 ("good") gives 좋은 사람, and 작다 ("small") gives 작은 방, with -(으)ㄴ. The full rule for normal adjectives is in the lesson on the adjective -(으)ㄴ form. The 있다/없다 family is the main exception, and the -는 appears in every pattern that has a -는 / -(으)ㄴ choice.

이 식당은 맛있는데 비싸요 means "This restaurant is good, but it's expensive." The plain present is the one place where these words act like adjectives again: 맛있다 stays 맛있다, while a verb would add -는다 (먹는다). That bare form is also the everyday exclamation: Koreans taste something and say 와, 맛있다 ("Wow, this is good") to themselves, without 요, even in polite company, because it is not addressed to anyone.

For a past description before a noun, use -던 or -었던 rather than -은: 여행에서 제일 맛있었던 음식은 비빔밥이에요 means "The most delicious food on the trip was bibimbap". The -은 ending never attaches to these words, in any tense.

Worked Example: "a Fun Film" and "a Delicious Restaurant"

1. Find the last word. 재미있다 ends in 있다; 맛있다 ends in 있다.
2. Choose the modifier from that last word. 있다 takes -는.
3. Remove 다 and add -는. 재미있 + 는 → 재미있는; 맛있 + 는 → 맛있는.
4. Add the noun. 재미있는 영화 ("a fun film"); 맛있는 식당 ("a restaurant with good food").

You'll know it worked when the syllable before the noun ends in 는. The common mistake at step 2 is to treat the whole word as an ordinary adjective and pick -은, which gives the wrong 맛있은. The forms beyond the modifier follow the normal rules, shown next.

How Do 있다 and 없다 Adjectives Conjugate?

Outside the modifier, 있다 and 없다 adjectives conjugate like any regular word with a consonant stem: add -어요 for the polite present, -었어요 for the past and -습니다 for the formal style. There is no irregular change.

Pronunciation has one twist. The Korean Standard Pronunciation rules (표준 발음법, Article 15) say 맛없다 is pronounced [마덥따], with ㅅ read as [ㄷ]. 맛있다 and 멋있다 are the only words given a second reading: the standard [마딛따] and [머딛따], with [마싣따] and [머싣따] also allowed. In everyday speech, [마시써요] is by far the more common. For "not tasty", 맛없어요 is natural, and 안 맛있어요 is also heard as a softer "not very tasty". The question of what kind of word 있다 itself is comes next.

Is 있다 a Verb or an Adjective?

있다 is both. The NIKL Standard Korean Language Dictionary (표준국어대사전) lists 있다 as a verb in the sense "to stay" and as an adjective in the sense "to exist, to have". 없다 is listed as an adjective. Some grammars put both in a small class of their own, existential words (존재사), because they share the -는 modifier.

The compounds follow the adjective sense: 맛있다 never has a command form or a plain present 맛있는다. Only the -는 modifier connects them to verbs. 있다 is also easy to confuse with 이다 ("to be"), which links two nouns; that contrast is explained in 이다 vs 있다. The 없다 side of the family has its own uses, covered next.

The 없다 Opposites

Most -있다 adjectives have an opposite with -없다, made by swapping the last word. The pair is not always balanced in use, so the table shows how often each side is heard.

별로 재미없었어요 means "It wasn't much fun." Words such as 상관없다 and 소용없다 are used mainly in the 없다 form and work as fixed expressions. More adjective pairs of every kind are listed in Korean opposite adjectives. Spoken Korean also shortens some of these words, as the next section shows.

Short Forms and Spoken Contractions

재미있다 has a standard short form, 재밌다, made by merging 미 and 있 into one syllable. 표준국어대사전 lists 재밌다 as the contraction of 재미있다, and it is the form most people use in conversation and messages.

The short form keeps the -는 rule: 재밌는 영화, not 재밌은 영화, because its last part is still 있다. 맛있다 and 멋있다 have no written short form; in fast speech the syllables blur, but the spelling stays the same. In formal essays and tests such as TOPIK, write the full form 재미있다. The next section shows the sentences these words usually appear in.

Sentence Frames with 있다 and 없다 Adjectives

있다 and 없다 adjectives describe a subject, so the thing that is tasty or fun takes the subject particle 이/가, or the topic particle 은/는 when you compare or introduce it. The person who finds it fun is usually left out.

At a restaurant, 맛있게 드세요 ("enjoy your meal") and 잘 먹었습니다, 정말 맛있었어요 ("thank you for the meal, it was really good") are set phrases you will hear daily; more are in Korean restaurant vocabulary. Even with these frames, a few habits produce errors, listed next.

Common Misconceptions

Four beliefs cause most errors with this family.

• Learners often use -은 because the word is an adjective. Actually the last word, 있다 or 없다, decides. Wrong: 맛있은 음식. Right: 맛있는 음식.
• Learners often add 이에요. Actually these words conjugate on their own. Wrong: 맛있는이에요. Right: 맛있어요.
• Learners often negate 없다 words with 안. Actually 없다 is already negative. Wrong: 안 재미없어요 for "boring". Right: 재미없어요.
• Learners often write 필요없다 as one word. Actually 필요 없다 keeps a space; 상관없다 does not.

An honest limit: this page covers the common compounds a learner needs. Korean has many more -없다 words, such as 어처구니없다 ("absurd") and 끊임없다 ("constant"), and the spacing of rarer ones should be checked in 표준국어대사전.

Practice: 10 Items

Give the form asked for. Answers follow.

1. 맛있다 + 음식 (before a noun)
2. 재미없다, polite past
3. 멋있다, polite present
4. 재미있다 + 영화 (before a noun, short form)
5. 맛있다, formal present
6. 상관없다, polite present
7. 맛있다 + -는데/-(으)ㄴ데
8. 있다 "exist" + 사람 (before a noun)
9. 맛없다, polite present
10. 재미있다, -(으)면

Answer key

If you got 8 or more right, the family is under control. Errors on items 1, 4 and 7 mean the -는 rule needs one more look.

What Should You Learn after 있다 and 없다 Adjectives?

With the Korean 있다 없다 adjectives in place, move on to Korean opposite adjectives, where 맛있다/맛없다 sits beside pairs such as 크다/작다 and 쉽다/어렵다. For the wider picture of words that describe, return to the descriptive verbs hub.

What this page does not cover. It does not cover -(으)ㄹ 수 있다/없다 ("can, cannot"), which uses 있다 and 없다 in a different pattern, or the full rules for adjective modifiers.

About this page. Last updated 2026-10-09. The Korean text on this page was machine-generated and reviewed and signed off by Min-ji Park on 15 October 2026. Forms were cross-checked with the site's rule-based conjugation engine. Romanization follows the Revised Romanization of Korean and is shown only as a learning aid.

Frequently Asked Questions

Is 맛있다 an adjective or a verb? 맛있다 is an adjective. 표준국어대사전 lists it as 형용사, and it behaves like one in the plain present (맛있다, never 맛있는다) and has no command form. It borrows only one verb-like habit from 있다: the modifier -는, as in 맛있는 음식. The same is true of 재미있다, 멋있다 and every -없다 adjective.

What is the opposite of 맛있다? The opposite of 맛있다 ("delicious") is 맛없다 ("tasteless, not good"), with 없다 in place of 있다: 이 빵은 맛없어요, "This bread doesn't taste good." 맛없다 is said [마덥따]. A softer way to say the same thing is 별로 맛없어요 or 맛이 별로예요, "It's not great."

Is 재밌다 correct Korean? Yes. 재밌다 is the standard short form of 재미있다 ("interesting, fun") and is listed in 표준국어대사전 as its contraction. It is used constantly in speech and informal writing: 그 영화 재밌어요, "That film is fun." In formal writing, essays and tests, the full form 재미있다 is the safer choice.

Are 있다 and 없다 irregular? No. 있다 and 없다 conjugate regularly: 있어요, 있었어요, 있으면; 없어요, 없었어요, 없으면. What makes them special is not irregularity but their modifier: they take the verb ending -는 (있는, 없는) although 없다 is an adjective. Every compound such as 맛있다 or 상관없다 inherits that -는.

How do I say "I don't mind" in Korean? Say 상관없어요 (sanggwaneopseoyo), literally "there is no connection". It answers questions such as 커피나 차, 뭐가 좋아요?, "Coffee or tea, which would you like?", with "either is fine". 괜찮아요 also works. Before a noun, 상관없다 takes -는 like every -없다 adjective: 상관없는 이야기, "an unrelated story".