The phrase "more frou frou" connotes excessive decoration, embellishments, or fussiness, but its antonyms refer to simplicity, minimalism, and understatement. The opposite of "more frou frou" could be "less fussy" or "minimalistic," denoting a preference for simplicity and plainness over ostentation and extravagance. Another antonym could be "understated," suggesting a style that is subtle and discreet rather than loud and ornate. Additionally, "unadorned" or "unembellished" convey a sense of sparseness and austerity, steering clear of any excessive fanciness. Whatever the antonym employed, it counters the notion of more frou frou as a way of embracing simplicity, less is more.