Japanese な-Adjectives: Complete Guide with Conjugation, Examples & JLPT N5 Tips
Learn how な-adjectives work in Japanese — conjugation rules, how to use すき/きらい/じょうず/へた, and common JLPT N5 mistakes to avoid.
By SJA Teaching Team · Published · Updated
Japanese な-Adjectives: The Complete Beginner's Guide (JLPT N5)
After mastering い-adjectives, the next step is understanding な-adjectives (na-keiyōshi). These behave differently and are essential for JLPT N5 success. Let's break it down clearly.
What Are な-Adjectives?
な-adjectives are descriptive words that use な to connect to a noun. They conjugate like nouns, making them easier in some ways!
Common な-adjectives:
- しずか (shizuka) – quiet
- げんき (genki) – energetic, healthy
- べんり (benri) – convenient, useful
- にぎやか (nigiyaka) – lively
- ひま (hima) – free (not busy)
How to Conjugate な-Adjectives
な-adjectives follow the same pattern as nouns:
| Form | Pattern | Example (べんり – useful) |
|---|---|---|
| Present Positive | ~ + です | べんりです (It is useful) |
| Present Negative | ~ + ではありません | べんりではありません (It is not useful) |
| Past Positive | ~ + でした | べんりでした (It was useful) |
| Past Negative | ~ + ではありませんでした | べんりではありませんでした (It was not useful) |
Describing Nouns with な-Adjectives
Unlike い-adjectives, you must add な between the adjective and the noun:
- げんきな ひと – an energetic person
- しずかな まち – a quiet town
- べんりな でんわ – a convenient phone
Remember: い-adjectives connect directly (たかい ほん), but な-adjectives need な (しずかな まち).
Special な-Adjectives: すき, きらい, じょうず, へた
These four words express likes, dislikes, and abilities. They all use the particle が for the object:
すき (Like) & きらい (Dislike)
- この ワインが すきです。 – I like this wine.
- さかなが きらいです。 – I dislike fish.
- アメリカの おんがくが すきでした。 – I liked American music.
じょうず (Good at) & へた (Bad at)
- サラさんは にほんごが じょうずです。 – Sarah is good at Japanese.
- わたしは りょうりが へたです。 – I am bad at cooking.
Important: When talking about your OWN skills, use とくい (strong point) instead of じょうず, which sounds like you're praising yourself.
Tricky な-Adjectives That Look Like い-Adjectives
These words end in い but are actually な-adjectives. This is a classic JLPT trap!
| Word | Meaning | Type |
|---|---|---|
| きれい | beautiful, clean | な-adjective ✅ |
| ゆうめい | famous | な-adjective ✅ |
| きらい | dislike | な-adjective ✅ |
| おおきい | big | い-adjective |
| ちいさい | small | い-adjective |
- ✅ きれいな ひと (a beautiful person)
- ❌ きれいい ひと (WRONG!)
Practice Questions
- あした、ひまですか？ – Are you free tomorrow?
- このまちは にぎやかではありませんでした。 – This town wasn't lively.
- サラさんは しんせつです。 – Sarah is kind.
- あの ワインは ゆうめいでした。 – That wine was famous.
How SJA Teaches な-Adjectives
Our structured N5 course at SJA covers な-adjectives with:
- ✅ Side-by-side comparison with い-adjectives
- ✅ Interactive games using すき/きらい to practice conversation
- ✅ JLPT mock test questions focusing on adjective traps
- ✅ Real-life role-play scenarios
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