Short answer: Frivolous means of little importance or lacking seriousness. A “frivolous purchase” is a silly splurge; a “frivolous lawsuit” is a legal claim with no real basis. It is almost always a criticism.
Here is Frivolous at a glance:
| Detail | Info |
|---|---|
| Term | Frivolous |
| Part of speech | Adjective |
| Core meaning | Of little importance; lacking seriousness; silly or unserious |
| Tone | Mildly critical / disapproving |
| You’ll see it in | Law (“frivolous lawsuit”), news, everyday criticism |
Where Did the Word Frivolous Come From?
Frivolous comes from the Latin frivolus, meaning “silly, empty, trifling” — originally describing brittle, worthless pottery shards. It entered English in the 1400s with the same dismissive flavor. The legal sense (“having no sound basis in law”) developed later as courts needed a word for claims too weak to take seriously — a frivolous lawsuit is, metaphorically, as empty as those ancient broken pots.
What Does Frivolous Mean? The Full Definition
Frivolous is an adjective with two close senses: 1) of little weight or importance — “a frivolous hobby”; 2) lacking in seriousness — “a frivolous attitude at work.” In law, frivolous has a technical bite: a frivolous lawsuit is one with no sound legal basis, and courts can punish lawyers who file them.
Calling something frivolous is a judgment call — it says the thing is not worth serious attention. That makes it a word of criticism, whether aimed at a lawsuit, a purchase, or a person’s behavior. For another adjective people use to judge attitudes, see our irreverent meaning guide.
For the full dictionary entry, see Merriam-Webster’s definition of frivolous.
Key Takeaways
- 🌟 Frivolous = of little importance, or lacking seriousness.
- A frivolous lawsuit has no sound legal basis — a technical legal term.
- From Latin frivolus: originally, worthless broken pottery.
- Almost always critical — never a compliment.
- Trivial = unimportant (neutral); frivolous = unserious (judgmental).
Is Frivolous Rude? Tone & Register Check
Is frivolous rude? It can be. Frivolous is a criticism — it dismisses something as unworthy of seriousness. Aimed at objects or ideas (“a frivolous argument”), it is fair debate; aimed at people (“you’re so frivolous”), it feels insulting. In legal writing it is technical, not personal. Register check: neutral in law, mildly disapproving elsewhere.
What Are the Synonyms and Antonyms of Frivolous?
- Synonyms: trivial, trifling, silly, petty, superficial, flippant
- Antonyms: serious, important, significant, weighty, solemn
Trivial and trifling match the “little importance” sense; flippant matches the “lacking seriousness” sense. None carries the legal punch of “frivolous lawsuit,” though. For more attitude-check vocabulary, explore gofer meaning.
FAQs About Frivolous
What does frivolous mean in simple terms?
Frivolous means not serious or not important — silly, trivial, or lacking a sound basis. “A frivolous excuse” is a silly one nobody believes.
What is a frivolous lawsuit?
A lawsuit with no real legal basis — filed to harass, delay, or gamble rather than to win on the merits. Courts can fine lawyers who file them.
Is frivolous a negative word?
Yes, almost always. It criticizes something as unserious or unworthy of attention. In legal contexts it is technical rather than emotional.
What is the opposite of frivolous?
Serious, important, significant, or weighty — depending on context. “A serious discussion” is the opposite of “a frivolous discussion.”
Can a person be frivolous?
Yes — a “frivolous person” is someone seen as silly, shallow, or unserious. It is unkind, so use it carefully. Related: irreverent meaning.
What does “frivolous” mean in law vs everyday use?
In everyday use it means silly or unimportant. In law it is a technical term: a frivolous claim has no sound legal basis, and filing one can lead to fines or sanctions for the lawyer.
Frivolous vs. Trivial: What’s the Difference?
Frivolous vs. trivial: close cousins, different jobs. Trivial simply means “of little importance” — a neutral observation (“a trivial detail”). Frivolous adds a layer of judgment about seriousness: it suggests something is silly, wasteful, or unserious on purpose. A typo is trivial; spending the rent money on lottery tickets is frivolous. Also, only frivolous has the legal meaning — there is no such thing as a “trivial lawsuit” in court terminology.
How Can You Use Frivolous in Everyday Conversation?
In conversation, “frivolous” is a polite-but-pointed criticism. “That was a frivolous purchase” stings less than “that was stupid,” but the message lands. It works in debates about money, time, and priorities: “Let’s skip the frivolous stuff and focus.”
Use it when you want to sound reasoned rather than rude. Just remember it is always a judgment — calling someone’s hobby frivolous to their face will not win you friends.
How Do You Use Frivolous in a Sentence?
Six examples:
- “He spent his bonus on frivolous gadgets he never uses.”
- “The judge dismissed the case as a frivolous lawsuit.”
- “This is a serious meeting — no frivolous chatter, please.”
- “She called window shopping a frivolous waste of time.”
- “His frivolous excuses didn’t fool anyone.”
- “Critics called the sequel a frivolous cash grab.”
Common Mistakes People Make With Frivolous
- Spelling it “frivilous” or “frivolus.” It’s f-r-i-v-o-l-o-u-s. The “o” after the “v” trips people up.
- Using it as a compliment. Frivolous is never praise — “a frivolous party” is not a fun party, it’s a pointless one.
- Confusing the legal sense. A lawsuit you simply dislike isn’t “frivolous” — in law, the word means the claim has no legal basis at all.
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Hi, I’m Claire Morgan, a Senior Language Content Specialist at Hublioo.com. I have 5+ years of experience creating clear and easy-to-understand content about word meanings, slang, acronyms, phrases, and modern English usage. My goal is to simplify complex language and help readers understand words with confidence through accurate, well-researched, and reader-friendly explanations.
