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Vocabulary
なだらかな

B1 adjective 8 min read

なだらかな

nadaraka na

Practice it Examples Notes & Tips なだらかな in 30 Seconds

Explanation なだらかな in your Level:

At the A1 level, you are just starting to describe the world around you. なだらかな (Nadarakana) might seem a bit long, but it's very useful! Think of it as 'not steep'.

Use it for easy hills: なだらかな山 (Nadarakana yama) = A gentle mountain.
Use it for easy roads: なだらかな道 (Nadarakana michi) = A gentle road.

At this stage, you don't need to worry about complex grammar. Just remember to put 'na' between the word and the noun. If you like walking or cycling, this is a great word to know because it means 'easy'!

For A2 learners, you can start using なだらかな in simple sentences with particles. You might compare two places or describe your neighborhood.

Example: 私の家の近くはなだらかな坂が多いです。 (There are many gentle slopes near my house.)

You should also learn its opposite: 急な (Kyuu na) which means 'steep'. Knowing these two together helps you describe hiking or walking routes. Remember, nadaraka is a 'na-adjective', so it behaves like suki or kirei in sentences.

At the B1 level, you are expected to use なだらかな to describe nuances in terrain and simple metaphors. You should understand that it implies a sense of comfort or visual beauty.

Key usage: なだらかな曲線 (Nadarakana kyokusen) - a gentle curve. This could describe a road, a drawing, or a piece of furniture.

You also begin to see it in 'steady' contexts, like なだらかな回復 (nadarakana kaifuku) - a gradual recovery. This shows you're moving beyond just physical descriptions into more abstract ideas. Pay attention to the adverbial form なだらかに (gently/gradually) used with verbs like agaru (rise) or sagaru (fall).

B2 learners should distinguish なだらかな from its close synonyms like yuruyakana and namerakana. At this level, your choice of words should be precise.

When describing a landscape in a story or a report, なだらかな is the standard term for rolling hills or the soft silhouette of a mountain range. You might use it to describe the 'gentle' transition of colors in a sunset or the 'smooth' flow of a design. You should also be comfortable using it in formal writing, such as describing geological features or urban planning (e.g., nadarakana surōpu for accessibility).

At the C1 level, なだらかな is used to create atmosphere and sophisticated imagery. You will encounter it in high-level literature and technical papers.

In literature, it might describe the なだらかな時の流れ (the gentle flow of time) or the なだらかな起伏 (gentle undulations) of a character's emotional state, though physical landscape remains the primary usage. You should be able to appreciate the word's ability to evoke a specific 'Japanese' aesthetic of subtle, non-abrupt beauty. In technical Japanese, you'll see it in contexts like fluid dynamics or structural engineering to describe optimal, non-turbulent surfaces.

For C2 mastery, なだらかな is a tool for perfect descriptive precision. You understand its historical roots and its place among the myriad of Japanese adjectives for 'smoothness' and 'softness'.

You can use it to critique art, architecture, or natural phenomena with the nuance of a native specialist. You recognize when an author uses nadaraka instead of yuruyaka to emphasize the visual 'slope' over the temporal 'slowness'. You are also fully aware of its rare kanji forms and its relationship to the broader family of words describing gradients and textures in the Japanese language.

Practice it Examples Notes & Tips

なだらかな in 30 Seconds

Used for gentle slopes and curves.
A na-adjective: needs 'na' before nouns.
Opposite of 'kyuu' (steep).
Common in landscape and trend descriptions.

The Japanese adjective なだらかな (Nadarakana) is a quintessential term used to describe physical geometry that lacks abruptness. Specifically, it refers to slopes, inclines, curves, or surfaces that transition in a gentle, gradual, or smooth manner. In the context of the Japanese landscape, which is predominantly mountainous, this word carries a specific aesthetic and functional weight. It distinguishes a manageable, pleasant hill from a steep, treacherous cliff. When you use nadarakana, you are conveying a sense of ease and visual flow.

Geographical Context: Used primarily for hills (丘), mountains (山), and slopes (坂) that do not require intense physical exertion to climb.
Visual Dynamics: Describes curves in a road or the silhouette of a coastline that moves softly without sharp angles.
Metaphorical Nuance: Occasionally used to describe a change or transition that is not sudden, such as a gradual economic recovery or a smooth career progression.

この道はなだらかな坂になっているので、自転車でも楽に登れます。
— Translation: This road has a gentle slope, so you can climb it easily even by bicycle.

In daily life, Japanese speakers use this word when discussing hiking trails, real estate (describing the land), and even in weather or wave reports. If you are describing a 'rolling hill' in English, nadarakana oka is your go-to phrase. It suggests a certain tranquility. Unlike 'flat' (平らな - taira na), nadarakana acknowledges an incline but emphasizes its mildness. It is the opposite of kyuu na (急な - steep).

Wait until you hear it in a tourism context! A guide might say, "The path to the shrine is nadarakana," which is a relief to elderly visitors or those with heavy luggage. It sets expectations for physical effort. Beyond terrain, you might encounter it in technical contexts, like describing a 'gentle curve' on a graph (なだらかな曲線), indicating a slow and steady change rather than a volatile spike.

遠くになだらかな山の稜線が見える。
— Translation: I can see the gentle ridgeline of the mountains in the distance.

Understanding the difference between nadarakana and its synonyms is crucial for CEFR B1 learners. While yuruyakana (緩やかな) also means gentle, it is more frequently applied to speed (slow), rules (lenient), or liquid flow. Nadarakana is more strictly tied to the physical shape and angle of the ground. When you want to paint a picture of a peaceful, rolling countryside, nadarakana is the brush you use.

Kanji Usage: While often written in hiragana, the kanji 灘 (rare) or 傾斜が平らか are theoretically possible but almost never used. Stick to なだらか.

Using なだらかな correctly requires understanding its role as a na-adjective. This means when it modifies a noun, you must include the 'na'. When it ends a sentence, you use 'da' or 'desu'.

Noun Modification: [Adjective] + な + [Noun]. Example: なだらかな丘 (A gentle hill).
Predicate Form: [Subject] + は + なだらかだ/です。 Example: 傾斜はなだらかです (The slope is gentle).

この公園にはなだらかな芝生の広場があります。
— Translation: This park has a gentle, sloping lawn area.

The word is versatile in terms of formality. It is common in literature, news reports, and polite conversation. In a hiking context, you might use it to reassure a friend: "Don't worry, the path is nadaraka from here." In a more academic or technical setting, it describes mathematical curves or geological formations. It is rarely used in slang or highly informal contexts because it has a slightly sophisticated, descriptive nuance.

Consider the following structures for B1 learners: 1. Comparing two slopes: 'A山よりB山のほうがなだらかだ' (Mt. B is gentler than Mt. A). 2. Expressing a preference: 'なだらかな道のほうが歩きやすい' (Gentle paths are easier to walk). 3. Describing views: 'なだらかな海岸線' (A smooth/gentle coastline).

景気がなだらかな回復基調にあります。
— Translation: The economy is in a trend of gradual recovery.

When describing a recovery or a trend, nadarakana suggests that while progress is being made, it isn't dramatic or fast. It’s steady. This metaphorical use is more common in business news than in casual chat. If you are writing a report about sales growth, using nadarakana joushou (gradual rise) sounds professional and precise.

Common Adverbial Form: なだらかに (Nadarakani). Example: 道はなだらかに下っている (The road descends gently).

You will encounter なだらかな in several specific environments. Understanding these contexts helps you recognize the word even when you aren't looking for it.

Nature and Tourism: Brochures for Hokkaido or Nagano often use this to describe the beautiful rolling hills. 'なだらかな丘陵地帯' (Gentle hilly terrain) is a classic travel-writing phrase.
Sports and Outdoors: Ski resorts use it to describe beginner slopes. A 'なだらかな斜面' (gentle slope) is where you take your first lessons.
Architecture and Urban Planning: When discussing barrier-free access, architects aim for 'なだらかなスロープ' (gentle ramps) to accommodate wheelchairs.

このスキー場はなだらかなコースが多いので、初心者におすすめです。
— Translation: This ski resort has many gentle courses, so it's recommended for beginners.

In literature, authors use nadarakana to set a peaceful mood. Imagine a scene where a character is walking home at sunset; the 'gentle slope' of the neighborhood road adds to the calm atmosphere. It is a word of comfort. Conversely, if a writer wants to show tension, they might contrast a nadarakana path with a sudden kyuuzaka (steep hill).

In the business world, look for it in charts. A 'なだらかな曲線' (gentle curve) on a sales graph is much better than a flat line, even if it's not a vertical spike. It implies sustainability. If you're a designer, you might describe a product's form as having 'なだらかなライン' (gentle lines/curves), which sounds more elegant than just saying 'round'.

新幹線の先頭車両は、空気を切り裂くようななだらかな形をしている。
— Translation: The front car of the Shinkansen has a gentle shape designed to cut through the air.

Finally, in the context of health and aging, physical therapists often recommend walking on nadarakana paths to avoid putting too much stress on the knees. In this sense, the word is associated with safety and health management. It’s a very practical word that bridges the gap between descriptive beauty and functional utility.

Even at the B1 level, learners often trip over the nuances of なだらかな. The most common error is using it as a direct synonym for 'slow' or 'easy' in contexts where it doesn't fit.

Mistake 1: Confusing with 緩やかな (Yuruyakana): While both mean 'gentle', yuruyaka is for speed or looseness. You shouldn't say 'なだらかな風' (nadarakana kaze) for a gentle breeze; use '穏やかな' (odayaka) or 'そよ風' (soyokaze) instead.
Mistake 2: Confusing with 平らな (Taira na): 'Taira' means flat/level. 'Nadaraka' means there IS a slope, just a small one. If you call a flat table 'nadaraka', it implies the table is actually slanted!
Mistake 3: Forgetting the 'Na': Since it's a na-adjective, saying 'なだらか坂' is grammatically incorrect. It must be 'なだらかな坂'.

❌ この川の流れはなだらかだ。
✅ この川の流れは緩やかだ。
— Explanation: Use 'yuruyaka' for the flow of a river.

Another subtle mistake is using nadarakana to describe a person's personality. While you can be 'gentle' (yasashii) or 'calm' (odayaka), you cannot be 'nadaraka'. That would imply your body is shaped like a rolling hill! Keep nadarakana for physical shapes and slopes.

Lastly, don't confuse it with nameraka (滑らか), which means 'smooth' in terms of texture (like silk or skin) or 'fluent' (like speaking). While a nadarakana slope might also be nameraka (smooth/slippery), they describe different qualities: one is the angle, the other is the surface friction.

❌ 彼の日本語はなだらかだ。
✅ 彼の日本語は滑らかだ。
— Explanation: Use 'nameraka' for fluent speech.

By keeping these distinctions in mind—physical angle vs. speed vs. texture—you will avoid the most frequent pitfalls and sound much more like a native speaker.

To truly master なだらかな, you need to know its 'neighbors' in the Japanese vocabulary. Here is a breakdown of how it compares to similar terms.

緩やかな (Yuruyakana): The closest synonym. Used for slopes, but also for speed, rules, and curves. It is broader than nadaraka. If in doubt, yuruyaka is often a safe bet, but nadaraka sounds more specific to terrain.
穏やかな (Odayakana): Means 'calm' or 'peaceful'. Used for weather, the sea, or a person's character. You might use this for a 'gentle' sea, whereas nadaraka would be for a 'gentle' hill.
平坦な (Heitan na): Means 'even' or 'flat'. Use this when there is no incline at all. A running track is heitan; a hiking trail through hills is nadaraka.

比較：
1. なだらかな坂 (A gentle slope)
2. 緩やかなカーブ (A gentle/wide curve)
3. 平坦な道 (A flat road)

When you want to describe a 'soft' appearance, you might also consider yawaraka (柔らか), but that refers to physical softness (like a pillow). For visual softness in shapes, nadaraka is better. If you are talking about a slope that is so gentle it's almost flat, you could say '緩い' (yurui), which is more casual.

In professional writing, you might see koubai ga chiisai (勾配が小さい - the gradient is small). This is the mathematical way to say nadaraka. However, nadaraka is much more common in everyday speech and literature because it evokes a feeling, not just a measurement.

この辺りはなだらかな地形が続いている。
— Translation: Around here, the gentle terrain continues for a while.

Summary of choices: Use nadaraka for terrain and visual curves. Use yuruyaka for speed and rules. Use heitan for absolute flatness. Use odayaka for peace and calm. Mastering these four will give you high precision in your Japanese descriptions.

How Formal Is It?

Fun Fact

Even though 'nadare' (avalanche) sounds scary, 'nadaraka' is one of the most peaceful words for landscape. They are like two sides of the same coin: one is the movement, the other is the shape.

Pronunciation Guide

UK na.da.ra.ka.na

US nɑ.dɑ.ɾɑ.kɑ.nɑ

Japanese is a pitch-accent language. In 'nadaraka', the pitch starts low on 'na', rises on 'da', and stays high or drops slightly on 'ra-ka'. It is generally 'Atamadaka' (Type 1) or 'Heiban' (Type 0) depending on dialect, but standard is relatively flat after the initial rise.

Rhymes With

Takaraka (Loud) Azayaka (Vivid) Odayaka (Calm) Sasayaka (Small) Hanayaka (Showy) Sawayaka (Refreshing) Nameraka (Smooth) Yuruyaka (Gentle)

Common Errors

Pronouncing 'ra' like an English 'r' with curled lips.
Stressing one syllable too heavily like English word stress.
Forgetting the 'na' at the end when modifying nouns.
Confusing the pitch with 'nameraka'.
Shortening the vowels.

Difficulty Rating

Reading 2/5

Hiragana is easy; the concept is straightforward but requires nuance.

Writing 3/5

Remembering to use 'na' and the spelling 'nadaraka' is key.

Speaking 2/5

The word flows well and is easy to pronounce.

Listening 3/5

Can be confused with 'nameraka' or 'yuruyaka' in fast speech.

What to Learn Next

Prerequisites

山 (Mountain) 坂 (Slope) 道 (Road) 急な (Steep) 平らな (Flat)

Learn Next

緩やかな (Gentle/Loose) 滑らかな (Smooth) 起伏 (Undulation) 傾斜 (Inclination) 稜線 (Ridgeline)

Advanced

険峻 (Steep/Rugged) 緩急 (Tempo/Pace) 勾配 (Gradient) 等高線 (Contour line)

Grammar to Know

Na-Adjective Noun Modification

なだらかな丘 (Nadarakana oka)

Adverbial form with 'ni'

なだらかに上昇する (Nadarakani joushou suru)

State of being with 'da/desu'

この道はなだらかです (Kono michi wa nadaraka desu)

Comparison with 'hou ga'

なだらかな道のほうがいい (The gentle road is better)

Changing state with 'ni naru'

坂がなだらかになった (The slope became gentle)

Examples by Level

なだらかな山です。

It is a gentle mountain.

Simple predicate usage.

この道はなだらかです。

This road is gentle.

Adjective ending in 'desu'.

なだらかな坂を歩きます。

I walk on a gentle slope.

Modifying the noun 'saka'.

公園になだらかな丘があります。

There is a gentle hill in the park.

Using 'ga arimasu' with the modified noun.

ここはなだらかですね。

It's gentle here, isn't it?

Adding the particle 'ne' for agreement.

なだらかな道が好きです。

I like gentle roads.

Object of 'suki'.

山はなだらかではありません。

The mountain is not gentle.

Negative form.

なだらかな所に行きましょう。

Let's go to a gentle place.

Modifying 'tokoro'.

自転車でなだらかな坂を登りました。

I climbed the gentle slope by bicycle.

Past tense verb with 'nadarakana'.

この山道は急ではなく、なだらかです。

This mountain path is not steep; it's gentle.

Contrast using 'dewa naku'.

なだらかな丘の上で休みましょう。

Let's rest on top of the gentle hill.

Location particle 'de'.

もっとなだらかな道はありませんか。

Is there a gentler road?

Comparative nuance with 'motto'.

この辺りの山はなだらかで、きれいです。

The mountains around here are gentle and beautiful.

Connecting two adjectives with 'de'.

なだらかな斜面でスキーを練習します。

I practice skiing on a gentle slope.

Specific noun 'shamen' (slope).

道がなだらかになったので、疲れなくなりました。

Since the road became gentle, I stopped getting tired.

Using 'ni naru' for change.

なだらかな海岸線をドライブしました。

I drove along the gentle coastline.

Compound noun 'kaigansen'.

グラフの曲線がなだらかに上昇している。

The curve on the graph is rising gently.

Adverbial 'nadarakani'.

なだらかな山並みが夕日に映えている。

The gentle mountain range is glowing in the sunset.

Descriptive literary style.

この車はなだらかなカーブでも安定している。

This car is stable even on gentle curves.

Using 'demo' for emphasis.

景気はなだらかな回復に向かっています。

The economy is heading toward a gradual recovery.

Metaphorical use for 'gradual'.

なだらかな屋根の形がこの家の特徴です。

The gentle shape of the roof is a feature of this house.

Focus on architectural form.

川の流れがなだらかになり、深くなった。

The river flow became gentle and deeper.

Describing water movement change.

階段ではなく、なだらかなスロープを作った。

They built a gentle ramp instead of stairs.

Contrast 'kaidan' and 'surōpu'.

なだらかな表情で彼は話し始めた。

He began to speak with a gentle expression.

Applying the concept to facial expression (rare/poetic).

稜線がなだらかに続く、美しい景色だ。

It's a beautiful view with a ridgeline that continues gently.

Focus on 'ryousen' (ridgeline).

この地域はなだらかな起伏に富んでいる。

This area is rich in gentle undulations.

The phrase 'kifuku ni tonde iru'.

政府はなだらかな増税を計画している。

The government is planning a gradual tax increase.

Political/Economic context.

なだらかな曲線美を追求したデザイン。

A design that pursues the beauty of gentle curves.

Aesthetic terminology.

道はなだらかに下り、村へと続いている。

The road descends gently and continues to the village.

Describing spatial progression.

気圧配置がなだらかで、風もほとんどない。

The pressure pattern is gentle, and there is almost no wind.

Meteorological context.

なだらかな変化を見守る必要がある。

We need to watch over the gradual changes.

Abstract noun modification.

その丘はなだらかな傾斜を持って海に落ちている。

The hill drops to the sea with a gentle slope.

Formal descriptive structure.

広大な草原になだらかな丘が点在している。

Gentle hills are scattered across the vast prairie.

Using 'tenzai' (scattered).

作者はなだらかな文体で、日常の機微を描いた。

The author depicted the subtleties of daily life with a smooth/flowing style.

Metaphorical use for writing style (buntai).

なだらかなスロープの設計は、ユニバーサルデザインの基本だ。

Designing gentle ramps is the basis of universal design.

Technical/Professional context.

この土地のなだらかな地勢が、農耕に適している。

The gentle topography of this land makes it suitable for farming.

Using 'chisei' (topography).

物価の上昇は、今のところなだらかに推移している。

The rise in prices has been progressing gradually so far.

Formal economic reporting.

なだらかな弧を描いて、鳥が空を飛んでいった。

The bird flew through the sky, drawing a gentle arc.

Describing motion in space.

その建物のフォルムは、なだらかな曲線によって構成されている。

The form of that building is composed of gentle curves.

Art/Architecture critique.

なだらかな丘陵地帯を抜けると、大きな湖が見えた。

After passing through the gentle hilly terrain, a large lake appeared.

Narrative structure.

なだらかな地形の変遷を地質学的に考察する。

Consider the transition of gentle terrain from a geological perspective.

Academic research context.

その音楽の旋律は、なだらかな起伏を繰り返しながら終止へと向かう。

The melody of the music moves toward the finale while repeating gentle undulations.

Musicology context.

なだらかな斜面における土壌浸食のメカニズムを解明する。

Elucidate the mechanism of soil erosion on gentle slopes.

Scientific paper style.

彼はなだらかな口調の中に、鋭い批判を込めた。

Within his gentle tone, he embedded sharp criticism.

Sophisticated character description.

なだらかな曲線美を持つ伝統的な陶磁器。

Traditional ceramics possessing the beauty of gentle curves.

Cultural heritage context.

社会構造のなだらかな変革が、長期的な安定をもたらす。

A gradual transformation of the social structure brings long-term stability.

Sociological/Political theory.

なだらかな丘を渡る風が、草原を波立たせている。

The wind crossing the gentle hills is making the prairie ripple.

High-level evocative description.

その統計データは、なだらかな減少傾向を鮮明に示している。

The statistical data clearly shows a gradual downward trend.

Data analysis context.

Common Collocations

なだらかな坂

なだらかな丘

なだらかな曲線

なだらかな斜面

なだらかな回復

なだらかな上昇

なだらかな変化

なだらかな稜線

なだらかなスロープ

なだらかな海岸線

Common Phrases

傾斜がなだらか

— The slope is gentle. Used to describe the physical angle.

この山の傾斜はなだらかだ。

なだらかに続く

— Continues gently. Used for paths or hills that stretch out.

道はなだらかに続いている。

なだらかなカーブ

— A gentle curve. Common in driving or design.

なだらかなカーブを曲がる。

なだらかな起伏

— Gentle undulations. Used for rolling landscapes.

なだらかな起伏のある土地。

なだらかな表情

— A gentle expression. Poetic use for a relaxed face.

彼はなだらかな表情を浮かべた。

なだらかな流れ

— A gentle flow. Used for rivers or time.

なだらかな川の流れ。

なだらかなライン

— Gentle lines. Used in fashion or product design.

なだらかなラインのドレス。

なだらかな減少

— Gradual decrease. Used in statistics.

人口がなだらかに減少している。

なだらかな山容

— The gentle appearance of a mountain.

なだらかな山容を愛でる。

なだらかな勾配

— A gentle gradient. More formal/technical.

なだらかな勾配の道。

Often Confused With

なだらかな vs 緩やかな (Yuruyakana)

Yuruyaka is broader; it includes speed and rules. Nadaraka is more for physical slopes.

なだらかな vs 滑らかな (Namerakana)

Nameraka is for smooth textures (skin, silk) or fluency. Nadaraka is for gradients.

なだらかな vs 平らな (Taira na)

Taira is perfectly flat. Nadaraka still has an incline.

Idioms & Expressions

"なだらかな人生"

— A smooth/uneventful life. Not a standard idiom, but used metaphorically.

なだらかな人生を歩みたい。

Poetic

"なだらかに収束する"

— To converge gently. Used in mathematics or social issues.

問題はなだらかに収束した。

Formal

"なだらかなるは..."

— Old-fashioned/Literary way to start a description.

なだらかなる丘の上に...

Literary

"なだらかな山は登りやすい"

— Literal fact often used to imply that easy starts lead to success.

なだらかな山は登りやすいが、景色はどうか。

Proverbial

"なだらかなカーブを投げる"

— To throw a slow, gentle curveball (baseball).

彼はなだらかなカーブを投げた。

Sports

"なだらかな筆致"

— A smooth/gentle brushstroke or writing style.

なだらかな筆致で描かれた絵。

Art

"なだらかな物腰"

— Gentle/Soft mannerisms.

彼女のなだらかな物腰に癒やされる。

Neutral

"なだらかな道を選ぶ"

— To choose the easy path (metaphorically).

彼は常になだらかな道を選ぶ。

Neutral

"なだらかな時の刻み"

— The gentle ticking/passing of time.

なだらかな時の刻みを感じる。

Poetic

"なだらかな起伏の人生"

— A life with mild ups and downs.

なだらかな起伏の人生も悪くない。

Philosophical

Easily Confused

なだらかな vs 緩やかな

Both mean gentle.

Yuruyaka can describe speed (slow) or rules (lenient), while nadaraka is almost exclusively for shapes/slopes.

緩やかな風 (Gentle breeze) vs なだらかな坂 (Gentle slope).

なだらかな vs 滑らかな

Both sound similar and imply a lack of bumps.

Nameraka refers to surface texture or fluency. Nadaraka refers to the angle of a slope.

滑らかな肌 (Smooth skin) vs なだらかな曲線 (Gentle curve).

なだらかな vs 穏やかな

Both imply a lack of intensity.

Odayaka is for personality, weather, or the sea. Nadaraka is for terrain.

穏やかな人 (Calm person) vs なだらかな山 (Gentle mountain).

なだらかな vs 平坦な

Both describe 'easy' ground.

Heitan means flat with no hills. Nadaraka means hills that aren't steep.

平坦な道 (Flat road) vs なだらかな道 (Rolling/gentle road).

なだらかな vs 緩い

Casual synonym.

Yurui is more casual and can also mean 'loose' (like clothes). Nadaraka is more descriptive and formal.

靴が緩い (Shoes are loose) vs 傾斜がなだらか (Slope is gentle).

Sentence Patterns

なだらかな [Noun] です。

なだらかな山です。

[Noun] はなだらかで [Adjective] です。

この道はなだらかできれいです。

[Noun] はなだらかに [Verb]。

道はなだらかに続いています。

[Noun] がなだらかになりました。

傾斜がなだらかになりました。

なだらかな [Noun] に富んでいる。

なだらかな起伏に富んでいる。

なだらかな [Noun] 基調にある。

なだらかな回復基調にある。

なだらかな [Noun] を描く。

なだらかな曲線を描く。

なだらかな [Noun] の変遷。

なだらかな地形の変遷。

Word Family

Nouns

なだらかさ (Nadaraka-sa) - Gentleness/Gradualness

Verbs

なだらかにする (Nadaraka ni suru) - To make gentle/smooth

Adjectives

なだらかな (Nadarakana) - Gentle/Gradual

傾斜 (Keisha) - Slope

勾配 (Koubai) - Gradient

起伏 (Kifuku) - Undulation

曲線 (Kyokusen) - Curve

平坦 (Heitan) - Flatness

How to Use It

frequency

Common in geography, travel, and economy sections of newspapers.

Common Mistakes

なだらか坂 → なだらかな坂
It is a na-adjective, so it needs 'na' to connect to a noun.
なだらかな風 → 穏やかな風
Nadaraka is for physical slopes, not for wind or temperature.
なだらかな人 → 穏やかな人 / 優しい人
You cannot use nadaraka to describe personality.
なだらかな日本語 → 滑らかな日本語
For fluency in speech, use 'nameraka' (smooth).
なだらかな机 → 平らな机
A desk should be flat (taira), not a 'gentle slope' (nadaraka).

Tips

Nature Descriptions

Use this word when you want to describe a mountain that looks like a soft wave rather than a jagged tooth.

Don't Forget 'Na'

Always remember 'nadaraka-NA' when it's right before a noun. This is the most common mistake for learners.

Pair with Antonyms

Learn 'nadaraka' alongside 'kyuu' (steep). It helps you categorize terrain in your mind immediately.

Visual Writing

In creative writing, 'nadaraka' helps set a peaceful, calm mood for a scene.

Economic Trends

Use 'nadarakani' to describe a graph that is moving in the right direction without being volatile.

Barrier-Free

When talking about accessibility, 'nadarakana surōpu' is the standard term for a ramp.

Rhythm

The word has a rhythmic, rolling sound (na-da-ra-ka). Let it roll off your tongue like the hill it describes.

Aesthetic Choice

Choosing 'nadaraka' over 'yurui' makes your Japanese sound more polished and descriptive.

News Keywords

When you hear 'nadaraka' on the news, get ready for some statistics or a weather report.

Nada-Rocky

Nada = Nothing. Raka = Rocky. A gentle slope has nothing rocky or difficult about it!

Memorize It

Mnemonic

Think of a 'Nada' (nothing) 'Raka' (rocky). If there's 'nada' rocky parts, the slope is 'nadaraka' (gentle).

Visual Association

Imagine a perfect green hill in a Ghibli movie that you could easily roll down without getting hurt. That hill is 'nadaraka'.

Word Web

Hill Slope Smooth Gentle Gradual Easy Curve Landscape

Challenge

Try to find three things in your room or outside that have a 'nadaraka' shape and describe them in Japanese.

Word Origin

Derived from the ancient Japanese word 'nadaru' (to slide down or slope down). It shares a root with 'nadare' (avalanche), but while an avalanche is a violent sliding, 'nadaraka' describes the state of a slope that is so gentle it suggests a slow, controlled descent.

Original meaning: The state of a slope being easy to traverse or sliding down smoothly.

Japonic (Yamato Kotoba).

Cultural Context

No specific sensitivities; it is a very safe and descriptive word.

In English, we might say 'rolling hills'. 'Nadaraka' is the perfect equivalent for this poetic image.

Used in the lyrics of many 'Enka' songs to describe hometown landscapes. Commonly found in the works of Natsume Soseki when describing the scenery of old Tokyo. Frequent in geography textbooks describing the 'Chugoku Mountains'.

Practice in Real Life

Real-World Contexts

Hiking/Outdoors

なだらかな山道
なだらかな斜面
なだらかな丘
なだらかな下り

Statistics/Charts

なだらかな曲線
なだらかな上昇
なだらかな減少
なだらかな推移

Architecture/Design

なだらかなスロープ
なだらかなライン
なだらかなフォルム
なだらかな屋根

Driving/Navigation

なだらかなカーブ
なだらかな坂道
なだらかな合流
なだらかなバイパス

Literature/Mood

なだらかな表情
なだらかな時の流れ
なだらかな口調
なだらかな風景

Conversation Starters

"この近くになだらかな散歩コースはありますか？ (Is there a gentle walking course near here?)"

"なだらかな山と険しい山、どちらに登るのが好きですか？ (Do you like climbing gentle mountains or rugged mountains?)"

"この公園のなだらかな丘は、ピクニックに最高ですね。 (The gentle hills in this park are great for a picnic, aren't they?)"

"最近の物価上昇はなだらかだと思いますか？ (Do you think the recent price increases are gradual?)"

"なだらかなスロープがある出口はどこでしょうか？ (Where is the exit with a gentle ramp?)"

Journal Prompts

今日歩いた道はなだらかでしたか、それとも急でしたか？詳しく書いてください。 (Was the path you walked today gentle or steep? Write in detail.)

あなたが一番好きな「なだらかな風景」について説明してください。 (Describe your favorite 'gentle landscape'.)

人生を「なだらかな道」に例えるなら、今はどのあたりにいますか？ (If you compare life to a 'gentle road', where are you now?)

なだらかな回復を見せている自分の習慣やスキルはありますか？ (Are there any habits or skills of yours showing a gradual recovery?)

なだらかなデザインの製品を一つ選び、その魅力を書いてください。 (Choose a product with a gentle design and write about its appeal.)

Frequently Asked Questions

10 questions

No, 'nadaraka' is only for physical shapes and slopes. For a gentle person, use 'yasashii' or 'odayaka'.

Yes, it is often used to describe 'gradual' trends, such as a 'nadaraka na kaifuku' (gradual recovery) in the economy.

They are very similar, but 'yuruyaka' can also mean 'slow' or 'lenient'. 'Nadaraka' is specifically about the angle of a slope or curve.

It is usually written in hiragana. The kanji exists but is extremely rare and not recommended for learners.

It is a na-adjective. You say 'nadaraka-na oka', not 'nadaraka-i oka'.

You use 'nadaraka ni naru'. For example: 'Saka ga nadaraka ni natte kita' (The slope has started to get gentler).

Yes, 'nadarakana kaabu' is a very common phrase for a wide, gentle turn.

Not exactly. It means there is a slope, but it is not steep. 'Taira' is the word for 'flat'.

It can be used for a 'gentle flow' (nadarakana nagare), but 'yuruyakana nagare' is more common.

Yes, it is a basic B1 level word used frequently in nature descriptions and news.

Test Yourself 192 questions

writing

Write a sentence describing a gentle hill in your hometown.

Well written! Good try! Check the sample answer below.

Uses 'nadarakana' to modify 'oka' (hill).