efficient
Translation
efficient, productive, effective
Examples
The new machine is very efficient.
The new machine is very efficient.
She is an efficient and organised worker.
She is an efficient and organized worker.
This is an efficient way to learn vocabulary.
This is an efficient way to learn vocabulary.
Grammar Patterns
to be efficient My new car is very efficient.
an efficient ((noun)) We need a more efficient system.
Similar Words
Synonyms: productive, effective, streamlined; Antonyms: inefficient, wasteful
Etymology
From Latin 'efficiens', the present participle of 'efficere' (to accomplish). It's the adjective form related to the noun 'efficiency'.
Memory Tips
An 'efficient' person or machine produces the best 'effect' with the least waste of time and energy.