Parsimonious

Adjective

 * 1) Exhibiting parsimony; sparing in expenditure of money; frugal to excess; penurious; restrained; stingy.
 * 2) Using a minimal number of assumptions, steps, or conjectures.

Thesaurus
Spartan, abstemious, ascetic, austere, canny, careful, chary, cheeseparing, conserving, dwarfed, dwarfish, economic, economizing, exiguous, forehanded, frugal, frugal to excess, impoverished, jejune, labor-saving, lean, limited, meager, mean, miserly, money-saving, narrow, niggardly, overfrugal, paltry, penny-wise, penny-wise and pound-foolish, poor, provident, prudent, prudential, puny, saving, scamping, scant, scanty, scrawny, scrimp, scrimping, scrimpy, skimp, skimping, skimpy, slender, slight, slim, small, spare, sparing, starvation, stingy, stinted, stinting, straitened, stunted, subsistence, thin, thrifty, time-saving, too frugal, unnourishing, unnutritious, unwasteful, watered, watery

Translations

 * Finnish: ,