economical in use or expenditure; prudently saving or sparing; not wasteful: What your office needs is a frugal manager who can save you money without resorting to painful cutbacks. Synonyms: thrifty, chary, provident, careful, prudent, penny-wise, scrimping; miserly, Scotch, penny-pinching. Antonyms: wasteful, extravagant, spendthrift, prodigal, profligate.