/ Thesaurus / F Synonyms of frivolously Find synonyms for: Adverb1. frivolouslyusage: in a frivolous manner; "she spends her time frivolously enjoying the easy life of a rich and spoiled girl"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language