frugal 5 antonyms and opposites of frugal. Adjective — Careful with money; avoiding unnecessary spending or waste. Synonyms for frugal cheap economical thrifty abstemious canny chary moderate close with a buck economic husbandly huswifely parsimonious penny-pinching prudent spareful sparing spary tight tightwad Antonyms for frugal extravagant lavish prodigal spendthrift simple ← Back to the full definition of frugal