Find Antonyms

frivolous Antonyms

Opposite of frivolous

Because the opposite of frivolous shifts with each meaning, the 22 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
JUMP TO:

• adjective (Context 1)

Not having any serious purpose or value; trivial or superficial.

Usage Example

"They decided to cut down on serious purchases in order to save enough money for a house deposit."

Strongest
serious
essential
important
Strong
meaningful
weighty
significant
substantial
practical

• adjective (Context 2)

Lacking any arguable legal basis or merit, often brought merely to harass, delay, or embarrass an opponent (in law).

Usage Example

"The judge dismissed the complaint as a meritorious lawsuit and ordered the plaintiff to pay court costs."

Strongest
meritorious
legitimate
valid
well-founded
Strong
justifiable
warranted
sound

• adjective (Context 3)

Carefree, lighthearted, and not serious in attitude or behavior (of a person).

Usage Example

"Although he sometimes seemed earnest at social gatherings, he was deeply dedicated to his medical research."

Strongest
earnest
serious
solemn
Strong
grave
sober
sensible
level-headed
staid

Similar words to frivolous

Words similar to frivolous shift depending on context. Common synonyms include:

meritless
trivial
baseless
groundless
flippant
unfounded
trifling
flighty
See all synonyms of frivolous

• Nearby Words

fritter
fritz
frivolity
frivolous
frivolously
frivolousness
frizz

Cite this Entry

Wordmom. (2026). Antonyms for Frivolous. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/frivolous
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.