adj. 25B6; adjective
a hard-working, frugal man : THRIFTY, economical, careful, cautious, prudent, provident, unwasteful, sparing, scrimping; abstemious, abstinent, austere, self-denying, ascetic, monkish, spartan; parsimonious, miserly, niggardly, cheese-paring, penny-pinching, close-fisted; N. Amer. forehanded; informal tight-fisted, tight, stingy.
their frugal breakfast : MEAGRE, scanty, scant, paltry, skimpy; plain, simple, spartan, inexpensive, cheap, economical.
extravagant, lavish.