unserious

adjective

un·​se·​ri·​ous ˌən-ˈsir-ē-əs 

: not serious

unserious writers

unserious debates

… recognize the difference between serious and unserious warnings.

—Meg Greenfield

unseriously adverb

talking unseriously

unseriousness noun

Examples of unserious in a Sentence

Recent Examples on the Web

The elastic insult is meant to belittle the target as inauthentic, attention-hungry, unserious, and unmanly. — Erik Forrest Jackson, The Atlantic, 22 Aug. 2026

Some see Woke 2 as all about the issues, but the term is also used in more unserious posts. — Owen Carry, USA Today, 19 Aug. 2026

Her maddeningly unserious twin brother, Connor (Keen Ruffalo), is jaunting off to Europe with his girlfriend du jour. — Judy Berman, Time, 4 Aug. 2026

Cook and Harle’s vision of seriously unserious fun was indicted as cheap irony for years. — Billie Bugara, Pitchfork, 27 July 2026

Word History

First Known Use

1655, in the meaning defined above

Rhymes for unserious

• aquarius
• cinereous
• gregarious
• hilarious
• malarious
• nefarious
• precarious
• vicarious
• carious
• scarious
• various
• multifarious