EN

Synonyms for unserious

  • adjective

Most common

non-serious frivolous flippant facetious non-severe

All synonyms

Adjective

1. Flippant — not serious. Characterized by a lack of seriousness (e.g., earnestness, commitment)

non-serious, flippant, frivolous, facetious, flimsy

Other

non-severe

Antonyms

solemn

All antonyms of unserious →

Definitions

  1. adj. 1

    Not serious. Characterized by a lack of seriousness (e.g., earnestness, commitment).

Related words

Word family
unseriousness

Example sentences

  • frivolous Tom doesn't spend his money on frivolous things.
  • flippant Her flippant attitude won't get her hired.
  • facetious Are you accusing me of being facetious?

Popularity over time

Word1850 → 2019Trend
unseriousrising
frivoloussteady
flippantrising
facetiousfalling

Use in printed books, per decade from 1850 to 2019.

By length

6 letters
flimsy2
8 letters
flippant2
9 letters
frivolous3, facetious3

The small number after each word is its number of syllables (flimsy2 = 2 syllables).