Meaning of EFFICIENT in English

adj.1 productive with minimum waste or effort.

2 (of a person) capable; acting effectively.

Phrases and idioms:

efficient cause Philos. an agent that brings a thing into being or initiates a change.


efficiently adv.

Etymology: ME f. L efficere (as EX-(1), facere make, accomplish)

Oxford English vocab.      Оксфордский английский словарь.