Translation guide
The English adverb 'efficiently' describes doing something in a way that achieves maximum productivity with minimum wasted effort or expense. In Japanese, this concept is often expressed through adverbs, verb phrases, or by describing the manner of an action. The most common and natural ways to convey 'efficiently' depend on context, such as work, study, or daily tasks.
To describe doing something without wasting time, energy, or resources, often in work or daily tasks.
The standard adverb meaning 'efficiently'. It is neutral and widely used in both spoken and written Japanese.
彼は仕事を効率的にこなす。
He handles his work efficiently.
This system uses energy efficiently.
Similar to 効率的に, but often emphasizes productivity and output per unit of input. Slightly more formal or business-like.
能率的に作業を進めましょう。
Let's proceed with the work efficiently.
Means doing something skillfully and efficiently, often with a sense of being neat and quick. Common for tasks requiring dexterity or organization.
彼女は手際よく料理を作った。
She cooked efficiently (with skill and speed).
Literally 'without waste', this phrase emphasizes the absence of wasted effort or resources. Natural in both casual and formal settings.
無駄なく時間を使いなさい。
Use your time efficiently (without wasting it).
To emphasize speed and lack of wasted motion, often in physical tasks or processes.
An onomatopoeic adverb describing brisk, efficient action. Often used for people working quickly and decisively.
彼はてきぱきと指示を出した。
He gave instructions efficiently (briskly).
Means doing something quickly and without hesitation, often with a nuance of 'just get it done'. Can sound blunt or impatient, so use with care.
Can be perceived as rude if used toward others; safer in self-directed or very casual speech.
さっさと片付けてしまおう。
Let's clean up efficiently (quickly and without fuss).
Formal word meaning 'swiftly' or 'promptly'. Often used in business or official contexts to mean efficient and fast.
問題を迅速に解決します。
We will resolve the issue efficiently (promptly).
To describe efficient use of tangible or intangible resources, often in technical or environmental contexts.
A slightly more colloquial variant of 効率的に, often used in everyday speech. Interchangeable in many cases.
この車はガソリンを効率よく使う。
This car uses gasoline efficiently.
Short for 省エネルギー (energy-saving). Used specifically for energy efficiency.
省エネで家電を選ぶ。
Choose home appliances efficiently (with energy savings in mind).
Means 'economically' or 'thriftily', implying efficient use of money or resources. Can overlap with 'efficiently' in financial contexts.
経済的に時間を使う方法を考えよう。
Let's think of ways to use time efficiently (economically).
Both mean 'efficiently', but 効率的に focuses on the ratio of input to output (effectiveness), while 能率的に emphasizes productivity and work rate. In most daily situations, 効率的に is the safer choice.
While 効率的に is correct, in very casual conversation Japanese speakers often use simpler phrases like うまく (skillfully) or 早く (quickly) to imply efficiency. Overusing 効率的に can sound stiff.