Translation guide
Expresses that something is good for the environment, causes minimal harm, or is sustainable. Japanese uses various adjectives, compound nouns, and set phrases depending on context.
Describing products, actions, or lifestyles that are kind to the environment.
The most common and direct translation. Literally 'gentle to the environment'. Used for products, practices, and policies.
この洗剤は環境に優しいです。
This detergent is environmentally friendly.
I try to live an environmentally friendly lifestyle.
Short for 'ecological' or 'eco-friendly'. Very common in everyday speech and marketing. Often used as a prefix.
エコバッグを持って買い物に行きます。
I go shopping with an eco-friendly bag.
この車はとてもエコです。
This car is very eco-friendly.
Formal term meaning 'environmentally considerate type'. Used in business and technical contexts for products or systems.
当社は環境配慮型の製品を開発しています。
Our company develops environmentally friendly products.
Literally 'gentle to the Earth'. Emphasizes global environmental benefit. Common in advertising and casual speech.
地球に優しい素材を使っています。
We use environmentally friendly materials.
Focus on long-term sustainability, renewable resources, or minimal ecological footprint.
Means 'sustainable'. Used in formal contexts like SDGs, corporate policies, and environmental reports.
持続可能な社会を目指しています。
We aim for a sustainable society.
持続可能なエネルギー源が必要です。
We need sustainable energy sources.
Means 'low environmental impact'. Technical term used in product assessments and corporate sustainability reports.
この包装は環境負荷が低い設計です。
This packaging is designed to be environmentally friendly (low impact).
Describing a person's attitude or habits that are environmentally aware.
Means 'environmentally conscious'. Describes a person or group that actively cares about the environment.
彼女は環境意識が高いです。
She is environmentally conscious.
More casual version using エコ. Common in everyday conversation.
最近、エコ意識が高い人が増えています。
Recently, the number of eco-conscious people has been increasing.
Emphasizing that something does not damage or pollute the environment.
Simple negative form meaning 'not bad for the environment'. Natural in casual speech.
この素材は環境に悪くないですか？
Is this material environmentally friendly?
Means 'does not pollute the environment'. More specific and slightly formal.
この工場は環境を汚染しない技術を使っています。
This factory uses technology that is environmentally friendly (does not pollute).
環境に優しい is the standard phrase and can be used in any context. エコ is a casual abbreviation often used in product names (エコバッグ, エコカー) and everyday speech. In formal writing or speeches, 環境に優しい or 環境配慮型 is preferred.
エコバッグは環境に優しい選択です。
Eco-bags are an environmentally friendly choice.
Avoid directly translating 'friendly' as 友好的 (friendly in a social sense). 環境に友好的 is not idiomatic. Use 環境に優しい instead.
環境に優しい製品
environmentally friendly product
Loanword from English 'sustainable'. Used in fashion, lifestyle, and marketing, but less common than 持続可能な in formal writing.
サステナブルなファッションに興味があります。
I'm interested in sustainable fashion.