efficient

ef`fi´cient Pronunciation: ĕf`fĭsh´ent

a.	1.	Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack, or incapable; characterized by energetic and useful activity; as, an efficient officer, power. The efficient cause is the working cause. - Wilson.
n.	1.	An efficient cause; a prime mover. God . . . moveth mere natural agents as an efficient only. - Hooker.

Adj.	1.	efficient - being effective without wasting time or effort or expense; "an efficient production manager"; "efficient engines save gas" Antonyms: inefficient - not producing desired results; wasteful; "an inefficient campaign against drugs"; "outdated and inefficient design and methods"
	2.	efficient - able to accomplish a purpose; functioning effectively; "people who will do nothing unless they get something out of it for themselves are often highly effective persons..."-G.B.Shaw; "effective personnel"; "an efficient secretary"; "the efficient cause of the revolution" Synonyms: effective