Translation guide
The English word 'efficient' describes achieving maximum productivity with minimum wasted effort or expense. In Japanese, the most common equivalent is 効率的 (こうりつてき), but other expressions like 効率がいい, 能率的, or 手際がいい are used depending on whether you're talking about systems, time use, or personal skill. This guide breaks down the main ways to express 'efficient' naturally in Japanese.
Describing something as efficient in terms of resource use, productivity, or lack of waste.
The most direct and common translation for 'efficient'. Used for methods, systems, machines, etc. It's a na-adjective.
This method is very efficient.
We introduced an efficient system.
Literally 'efficiency is good'. A more colloquial way to say something is efficient. Often used in spoken Japanese.
This machine is efficient, isn't it?
Similar to 効率的 but emphasizes productivity and output per unit of input. Slightly more formal or technical.
Let's think of an efficient work procedure.
Adverbial form meaning 'efficiently'. Used to describe how an action is performed.
Please proceed with the work efficiently.
Focusing on using time well, without unnecessary delays or wasted moments.
Literally 'use time effectively'. A natural way to express being efficient with time.
It's important to use time efficiently.
Describes someone who works quickly and skillfully without wasted motion. Often used for manual tasks or handling things smoothly.
Refers to being well-organized and efficient in planning or preparation. Often used in business or event settings.
Describing machines, appliances, or processes that use minimal energy or resources.
Describing a person who works effectively without waste.
効率的 (こうりつてき) is the general term for 'efficient' and is widely used. 能率的 (のうりつてき) is more about productivity and output rate, and is less common in everyday speech. For most situations, 効率的 is the safer choice.
While you can say 効率的な人, it sounds a bit stiff. To describe a person who works efficiently, it's more natural to use phrases like 仕事ができる, 手際がいい, or 要領がいい.
We need a more efficient process.
She is very efficient at her job.
Natural paraphrase rather than literal translation.
She's efficient, so it'll be done quickly.
People who are efficient in planning work fast.
Means someone is good at handling things efficiently, often with a nuance of being clever or knowing the tricks. Can sometimes imply cutting corners.
Can have a slightly negative nuance of 'taking shortcuts' depending on context.
Because he's efficient, he can go home without overtime.