The Oxford Thesaurus An A-Z Dictionary of Synonyms - economicaladj.

1) cost-effective, money-saving, thrifty, unwasteful; cheap, inexpensive, reasonable; economic: This car is very economical to run. 2) provident, thrifty, sparing, economizing, prudent, conservative, frugal; parsimonious, penurious, stingy, cheap, miserly, niggardly, tight, close-fisted, tight-fisted, mean, penny-pinching, scrimping: Aunt Gertrude was always a very economical housekeeper.