1.
efficient; effective; productive
Achieving maximum results with minimum waste of time, effort, or resources.
効率的に勉強する。
To study efficiently.
もっと効率的な方法はないだろうか。
Isn't there a more efficient way?
限られた時間を効率的に使うことが成功の鍵だ。
Using limited time efficiently is the key to success.
A very common modifier in business, academic, and daily contexts. Formed from 効率 (efficiency) + 的 (suffix making na-adjectives). The base noun 効率 is also frequently used on its own.
COMMON COLLOCATIONS:
- 効率的な方法: an efficient method
- 効率的に働く: to work efficiently
- 効率的な運用: efficient operation/management
- 効率的な使い方: efficient way of using
SIMILAR WORDS:
- 能率的な: efficient — very similar but slightly more formal and less commonly used
- 効果的な: effective — focuses on achieving good results, not necessarily with minimal waste
- 合理的な: rational / reasonable — focuses on being logical and well-reasoned
- 生産的な: productive — focuses on output and results
USAGE:
The adverbial form 効率的に (efficiently) is extremely common in workplace and study contexts. The opposite concept is 非効率的な (inefficient).