inefficient

非効率的な、効率の悪い

成果を出すのに時間やお金、労力がかかりすぎるか、うまく働かない。

やさしい英語で： Using more time, money, or energy than necessary to produce a result, or failing to work well.

• This old heater is inefficient.
• The company replaced its inefficient ordering system.
• An inefficient use of fuel makes the journey expensive.

類義語： wasteful, ineffective

反対語： efficient

よく使う表現： inefficient system, inefficient process, inefficient use

仕事の能率が悪い、非生産的な

役に立つ仕事をあまりせず、物事をうまく進められない、または進めようとしない。

やさしい英語で： Doing little useful work or being unable or unwilling to get things done well.

• The new manager is inefficient.
• Inefficient workers slowed down the whole team.
• She became less inefficient after learning to plan her work.

使い方： inefficient at doing something (He is inefficient at organizing meetings.)

類義語： unproductive, ineffective

反対語： efficient, productive

よく使う表現： inefficient workers, inefficient manager, inefficient staff