Efficient ɪˈfɪʃnt Energy Highly Heating Equipment Adjective Worker

• a highly efficient worker
• efficient heating equipment
• more efficient use of energy
• fuel-efficient cars (= that do not use much fuel)

efficient

1. doing something in a good, careful and complete way with no waste of time, money or energy
• OPPOSITE inefficient
  https://www.oxfordlearnersdictionaries.com/definition/english/inefficient
• a highly efficient worker
• efficient heating equipment
• more efficient use of energy
• fuel-efficient cars (= that do not use much fuel)
• We offer a fast, friendly and efficient service.
• This is simply the most efficient way to do it.
• We must meet members' needs in the most efficient and effective ways possible.
• As we get older, our bodies become less efficient at burning up calories.
• These magnificent animals were remarkably efficient at survival.
• Modern water boilers are highly efficient in fuel use.
• He was ruthlessly efficient in acquiring estates.

Extra Examples

• She was helpful, quietly efficient and tactful.
• Which software is the most efficient at processing the data?
• The heating system is very efficient in its use of of fuel.
• The procedure is not fully efficient: improvements could be made.
• Their equipment was not as efficient at finding gold as today's machinery.
• Efficient teachers minimize the amount of paperwork they have to do.
• Farmers need to market their milk in an efficient, cost-effective manner.
• It's an incredibly efficient system.
• More efficient use of energy resources is vital.
• The more efficient firms have lower costs.
• Farms with large land size are more efficient than farms with small land size.
• The organization seems pretty efficient to me.
• Tax breaks make it efficient for business owners to own their premises.
• How can we make agriculture more economically efficient?

Word Origin

• late Middle English (in the sense ‘making, causing’): from Latin efficient- ‘accomplishing’, from the verb efficere ‘accomplish’, from ex- ‘out, thoroughly’ + facere ‘do, make’. The current sense dates from the late 18th cent.