Hello, I’m Kodak.
You take your first bite of ramen, sushi, curry, or homemade food, and you want to say:
Oishii!
Delicious! / This is good!
Do おいしい and うまい mean exactly the same thing?
おいしい is the safe, standard, and polite-friendly choice.
うまい sounds more casual, direct, and energetic—closer to “This is really good!” or “Tasty!”
おいしい (oishii) means “delicious,” “tasty,” or simply “good” when talking about food or drink.
おいしい works in both casual and polite situations.
うまい also means “delicious,” but it is more casual and can sound rougher or more forceful depending on the speaker and tone.
For a beginner, おいしいです is the safest way to tell someone that their food is delicious.
What Does Oishii Mean in Japanese?
おいしい is a Japanese い-adjective used when food, drinks, or sometimes even air tastes or feels pleasant.
Kanji: 美味しい
Romaji: oishii
Basic meaning: delicious; tasty; good
このラーメン、おいしい！
Kono rāmen, oishii!
This ramen is delicious!
このケーキはとてもおいしいです。
Kono kēki wa totemo oishii desu.
This cake is very good.
ここの水はおいしい。
Koko no mizu wa oishii.
The water here tastes good.
Depending on the situation, it may simply mean:
“This tastes good.”
“This is nice.”
“I like the taste.”
This is really delicious!
普通においしい。
It is good—nothing extraordinary, but genuinely tasty.
まあまあおいしい。
It is fairly good / not bad.
The Core Image of Oishii
The core image of おいしい is simple:
Food or drink enters your mouth
↓
The flavor feels pleasant
↓
You naturally think: おいしい！
The word does not tell us whether the food is sweet, salty, spicy, rich, fresh, or light. It gives the speaker’s overall positive evaluation of the taste.
Food and drinks can be おいしい, and Japanese also says 空気がおいしい for fresh, pleasant air—especially in the countryside or mountains.
山の空気はおいしいね。
Yama no kūki wa oishii ne.
The mountain air feels so fresh and good.
How to Pronounce Oishii
Romaji: oishii
Mora: お・い・し・い (4 morae)
Beginner guide: oh-ee-shee-ee
Pronunciation Point 1: Keep お and い Separate
The beginning is written おい. Give both sounds space rather than blending them into the English word “oy.”
o – i – shi – i
Four even Japanese beats.
Try to feel two beats: お・い.
Pronunciation Point 2: The Final しい Is Long
The ending contains two morae: し・い. Hold the i sound long enough to distinguish it from a shorter word.
Four beats
お・い・し ❌
The ending is too short.
Pronunciation Point 3: Avoid Heavy English Stress
Keep the rhythm relatively even. Do not strongly emphasize only SHI as in “oy-SHEE.”
How Do You Write Oishii in Japanese?
Kanji and hiragana: 美味しい
Katakana: オイシイ
Romaji: oishii
Both おいしい and 美味しい are common. Hiragana looks soft and easy to read, while the kanji spelling is also normal in adult writing.
オイシイ may appear in advertisements, manga, packaging, or social media for visual emphasis.
The word おいしい did not develop by simply reading the kanji 美 and 味 as ordinary sound parts. 美味しい is a conventional spelling applied to the existing Japanese word.
The noun 美味 is still normally read びみ, meaning “delicacy” or “fine flavor.”
Oishii ryōri
delicious food
秋の美味
Aki no bimi
autumn delicacies
The Origin and Etymology of Oishii
おいしい developed from the older adjective いしい, which could mean good, excellent, skillful, or tasty.
The polite prefix お was added to いしい, producing おいしい.
Older adjective いし / いしい
= good, excellent, tasty
↓
Polite prefix お + いしい
↓
おいしい
= tasty; delicious
Dictionaries describe いしい as a form associated with 女房詞 (nyōbō kotoba), vocabulary used by women serving in the imperial court. The modern word later spread far beyond that setting and is now used by everyone.
Do not remove the お and say いしい in modern conversation.
How to Use Oishii
1. Say Oishii by Itself
When the food is already clear, one word is enough.
おいしい！
Oishii!
Delicious! / This is good!
2. Use Oishii Desu for a Polite Compliment
とてもおいしいです。
Totemo oishii desu.
It is very delicious.
3. Put Oishii Before a Noun
おいしい料理ですね。
Oishii ryōri desu ne.
This is delicious food, isn’t it?
4. Mark the Food with は or が
この魚はおいしい。
Kono sakana wa oishii.
This fish is delicious.
何がおいしいですか？
Nani ga oishii desu ka?
What is good here?
After tasting the food, simply saying おいしい！ is natural and expressive.
Oishii Conjugation for Beginners
Because おいしい is an い-adjective, its ending changes.
is delicious
おいしくない
is not delicious / does not taste good
おいしかった
was delicious
おいしくなかった
was not delicious
おいしくて
delicious and… / because it is delicious…
おいしそう
looks delicious
おいしさ
deliciousness / how good it tastes
昨日のカレーはおいしかった。
Kinō no karē wa oishikatta.
Yesterday’s curry was delicious.
このスープはあまりおいしくない。
Kono sūpu wa amari oishikunai.
This soup is not very good.
おいしくて、全部食べました。
Oishikute, zenbu tabemashita.
It was delicious, so I ate all of it.
Oishii vs Oishisou: “Delicious” vs “Looks Delicious”
It tastes good.
You know or judge the actual flavor.
おいしそう
It looks or seems delicious.
You are judging from appearance, smell, or expectation.
このケーキはおいしい。
This cake is delicious.
⇒ You have tasted it or know its taste.
このケーキ、おいしそう！
This cake looks delicious!
⇒ You are reacting before tasting it.
おいしい → おいしそう
辛い → 辛そう
楽しい → 楽しそう
Oishii vs Umai: What Is the Difference?
Both words can describe food that tastes good.
Standard, neutral, and polite-friendly.
Easy to use with family, friends, hosts, restaurant staff, teachers, and coworkers.
Often sounds gentle or appreciative.
うまい (umai)
Casual, direct, and lively.
Can sound enthusiastic, masculine, rough, or playful depending on the speaker and tone.
Also has meanings unrelated to taste, such as “skillful” or “well.”
The difference is mainly tone and style. A forceful うまい！ often sounds more spontaneous and energetic, while おいしいです sounds more polite and appreciative.
このラーメン、おいしいですね。
This ramen is delicious, isn’t it?
⇒ Friendly, polite, and suitable for many situations.
このラーメン、うまい！
This ramen is seriously good!
⇒ Casual, direct, and energetic.
Is Umai Rude?
うまい is not inherently an insult or swear word. However, it is more casual than おいしい.
・with close friends
・with family
・when talking to yourself
・in casual restaurants
・in anime, sports shows, food videos, and social media
Safer to use おいしいです:
・when a host cooks for you
・at a formal dinner
・when speaking to a teacher, client, or superior
・when you are unsure about the social tone
But とてもおいしいです is the safer and more respectful beginner choice.
Is Umai Only for Men?
No. Women also use うまい, especially in casual speech, comedy, online content, food reviews, and conversation with close friends.
However, a strong sentence-final うまい！ has traditionally been associated more with casual or masculine-sounding speech than おいしい！. The actual impression depends on age, region, personality, relationship, and tone.
But all beginners—regardless of gender—should first understand its casual tone. Use おいしい when you want a neutral expression, and try うまい in relaxed situations once the style feels natural to you.
Umai Has More Meanings Than Oishii
おいしい mainly evaluates taste or describes something figuratively attractive. うまい has several very common meanings.
この肉はうまい。
This meat is tasty.
2. Skillful / good at something
彼は歌がうまい。
He is good at singing.
3. Goes well / succeeds
計画がうまくいった。
The plan went well.
4. Convenient or advantageous
そんなうまい話はない。
There is no deal that good.
歌がうまい = good at singing
料理がおいしい = the food tastes good
Oishii vs Umai in Natural Situations
とてもおいしいです！
It is very delicious!
⇒ Polite, warm, and safe.
うまいです！
It is tasty!
⇒ Grammatically possible, but the casual word and polite ending can feel stylistically mixed depending on the speaker.
これ、おいしいね。
This is good, isn’t it?
⇒ Friendly and neutral.
これ、めっちゃうまい！
This is insanely good!
⇒ Highly casual and enthusiastic.
料理はどれもおいしかったです。
Every dish was delicious.
⇒ Neutral and polished.
安くてうまい店です。
It is a cheap and tasty restaurant.
⇒ Common, punchy, and conversational.
Oishii vs Amai: Delicious Is Not the Same as Sweet
delicious / tastes good
甘い (amai)
sweet
このケーキは甘くておいしい。
Kono kēki wa amakute oishii.
This cake is sweet and delicious.
甘い describes one taste quality. おいしい gives your overall positive evaluation.
Oishii vs Umami
English speakers sometimes confuse うまい (umai) with うま味 (umami), but they are different words.
tasty; skillful; goes well
うま味 / 旨味
umami; savory taste
A specific taste quality associated with ingredients such as kombu, bonito, and mushrooms.
このスープはうま味が強くておいしい。
Kono sūpu wa umami ga tsuyokute oishii.
This soup has strong umami and tastes delicious.
The Figurative Meaning of Oishii
おいしい can also describe a situation that is attractive, profitable, convenient, or advantageous.
a tempting or suspiciously good offer
おいしい仕事
an easy or profitable job
おいしい役
a rewarding role; a role that attracts attention or benefits the performer
おいしいところを持っていく
to take the best part or steal the spotlight
そんなおいしい話には気をつけて。
Sonna oishii hanashi ni wa ki o tsukete.
Be careful of an offer that sounds that good.
Context tells you whether おいしい is about literal taste or figurative advantage.
Polite Ways to Compliment Japanese Food
It is delicious.
とてもおいしいです。
It is very delicious.
すごくおいしいです。
It is really good.
優しい味ですね。
It has a gentle, comforting flavor.
味付けがちょうどいいです。
The seasoning is just right.
初めて食べましたが、とてもおいしいです。
This is my first time trying it, and it is very good.
また食べたいです。
I would like to eat it again.
For an even warmer compliment, add one specific detail, such as 味付けがちょうどいいです or また食べたいです.
How to Say “Was It Delicious?”
Is it good?
Casual; asks about the present taste.
おいしいですか？
Is it delicious?
Polite.
おいしかった？
Was it good?
Casual; after eating.
おいしかったですか？
Was it good?
Polite.
この料理、おいしい？
Kono ryōri, oishii?
Is this dish good?
昨日の夕食はおいしかったですか？
Kinō no yūshoku wa oishikatta desu ka?
Was yesterday’s dinner good?
How to Say “Not Delicious” Without Sounding Too Harsh
おいしくない directly means “not delicious,” but saying it to the cook’s face may sound blunt.
あまりおいしくない。
It is not very good.
Softer alternatives:
ちょっと苦手な味です。
It is not really a flavor I like.
私には少し辛いです。
It is a little too spicy for me.
少し味が濃いかもしれません。
The flavor may be a little strong.
おなかがいっぱいです。
I am full.
Use it carefully when another person prepared the food.
Oishii and Umai in Anime and Manga
Anime uses both expressions, but character personality often affects the choice.
Delicious!
Neutral, cheerful, or gentle.
わあ、おいしい！
Wow, this is delicious!
Bright and appreciative.
うまい！
This is great! / Tasty!
Direct and energetic.
めちゃくちゃうまい！
This is insanely good!
Very casual and emphatic.
うまそうだな。
That looks good.
Casual; may sound masculine depending on the character and ending.
おいしそう！
That looks delicious!
Neutral and widely usable.
That does not make おいしい weak—it simply gives a different character voice.
Common Beginner Mistakes
Mistake 1: Treating Oishii as a Noun
This dish is delicious.
○ おいしい料理です。
It is delicious food.
× おいしいの料理
Do not add の between an い-adjective and its noun.
Mistake 2: Saying Oishii Deshita
Because おいしい itself is an adjective, change the adjective to the past form.
○ おいしかったです
It was delicious.
Mistake 3: Using Oishii Before Tasting When You Mean “Looks Delicious”
It looks delicious!
After tasting: おいしい！
It is delicious!
Mistake 4: Assuming Umai Is Always Rude or Male-Only
うまい is casual, but its impression depends on context. It is not forbidden for women and is not automatically rude.
Mistake 5: Confusing Umai with Umami
うまい evaluates something positively. うま味 names a particular savory taste.
Natural Example Sentences with Oishii
この寿司はおいしいです。
Kono sushi wa oishii desu.
This sushi is delicious.
わあ、おいしそう！
Wā, oishisō!
Wow, that looks delicious!
昨日食べたラーメンはおいしかった。
Kinō tabeta rāmen wa oishikatta.
The ramen I ate yesterday was delicious.
この店は魚がおいしい。
Kono mise wa sakana ga oishii.
The fish is good at this restaurant.
冷たい水がおいしい。
Tsumetai mizu ga oishii.
Cold water tastes so good.
このパン、おいしくて止まらない。
Kono pan, oishikute tomaranai.
This bread is so good that I cannot stop eating it.
何がおいしいですか？
Nani ga oishii desu ka?
What is good here?
全部おいしくいただきました。
Zenbu oishiku itadakimashita.
I enjoyed everything.
安くておいしい店を知っています。
Yasukute oishii mise o shitte imasu.
I know a cheap and tasty restaurant.
そんなおいしい話、本当かな。
Sonna oishii hanashi, hontō kana.
I wonder whether an offer that good is really true.
この肉、めっちゃうまい！
Kono niku, meccha umai!
This meat is insanely good!
母の料理はいつもおいしい。
Haha no ryōri wa itsumo oishii.
My mother’s cooking is always delicious.
FAQ About Oishii
What does oishii mean in English?
おいしい (oishii) means “delicious,” “tasty,” or simply “good” when describing food or drink.
How do you pronounce oishii?
Pronounce it in four beats: お・い・し・い. Keep the beginning おい and the long ending しい clear.
What does oishii desu mean?
おいしいです means “It is delicious” or “It tastes good.” Adding です makes the sentence polite.
What is the difference between oishii and umai?
Both can mean “delicious.” おいしい is neutral and polite-friendly, while うまい is more casual, direct, and energetic.
Is umai rude?
Not inherently. It is casual and may sound rough in formal situations, so おいしいです is safer when speaking to a host, customer, teacher, or superior.
Can women say umai?
Yes. Women also use うまい, especially casually. However, a forceful うまい！ may sound rougher or more masculine than おいしい！, depending on context.
How do you say “It looks delicious” in Japanese?
Say おいしそう (oishisō). Use it when judging food by its appearance, smell, or your expectation before tasting it.
How do you say “It was delicious” in Japanese?
Say おいしかったです (oishikatta desu) politely or おいしかった casually.
Is oishii written in kanji?
It can be written 美味しい, but the hiragana spelling おいしい is also extremely common.
Why is 美味しい pronounced oishii?
The word developed from older Japanese いしい with the prefix お. The kanji 美味 were conventionally applied to the existing word; they are not read as ordinary phonetic pieces in this spelling.
What is the opposite of oishii?
まずい (mazui) means “bad-tasting” or “not good,” but it can sound blunt when commenting on food someone made.
Can oishii describe something other than food?
Yes. Figuratively, おいしい can describe an attractive opportunity, profitable job, desirable role, or situation that benefits someone.
Summary: Oishii Meaning and Oishii vs Umai
おいしい means “delicious,” “tasty,” or “good” when talking about taste.
● Pronunciation
お・い・し・い — four Japanese beats.
● Writing
Hiragana: おいしい
Kanji: 美味しい
Katakana: オイシイ
● Origin
おいしい developed from older いしい with the polite prefix お.
● Oishii vs umai
おいしい = neutral, standard, and polite-friendly.
うまい = casual, direct, lively, and sometimes rougher.
● Before tasting
おいしそう = looks delicious.
● Past tense
おいしかったです = it was delicious.
● Figurative meaning
おいしい can also mean attractive, advantageous, or profitable.
It is natural, warm, and safe in almost any food situation. Then use うまい！ when you understand the casual tone and want a more energetic reaction.
References
- Kotobank: 美味しい — definitions, comparison with うまい, figurative meanings, and etymology from いしい plus the prefix お.
- Kotobank: 美し（いし） — older meanings including good, excellent, skillful, and tasty.
- Kotobank: 旨い — meanings including tasty, skillful, successful, and advantageous.
- Kotobank Progressive Japanese–English Dictionary: 美味しい — English equivalents and examples.
- Kotobank Progressive Japanese–English Dictionary: 旨い — taste, skill, and advantageous-situation examples.
- Kotobank: 旨味 — definition of umami as pleasant or savory taste.