Frivolous
Frivolous adjective - Lacking in seriousness or maturity.
Usage example: when asked by the waiter if we wanted anything else that evening, we made a frivolous request for free drinks
Happy and frivolous are semantically related. In some cases you can use "Happy" instead an adjective "Frivolous".
Nearby Words: frivolity, frivolously
Mutual synonyms
Both words in one sentence
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Stock American stereotypes crop up now and again; cowboys, trigger happy gun nuts, cheerleaders, valley girls, frivolous lawsuits, etc.
Source: Comic Book / Viz - Wicked Lovely has the Summer court, who are described as 'happy by nature' and 'frivolous and passionate'.
Source: For Happiness -
Phineas and Ferb: In "Happy Birthday Isabella", it seems like the OWCA has become more frivolous about using memory-erasing technology.
Source: Laser-Guided Amnesia
Cite this Source
Happy and Frivolous. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/frivolous/happy
Frivolous & Happy. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/frivolous/happy>.
Happy or Frivolous. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/frivolous/happy.
Google Ngram Viewer shows how "frivolous" and "happy" have occurred on timeline