efficient
Meaning
adj 1: being effective without wasting time or effort or expense;"an efficient production manager"; "efficient engines
save gas" [ant: inefficient]
2: 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" [syn:
effective]