Synonyms of frivolous in English:

frivolous


See definition of frivolous

adjective

1‘all of the girls were indolent and frivolous’

SYNONYMS

giddy, silly, foolish, facetious, zany, light-hearted, merry, superficial, shallow, lacking seriousness, non-serious, light-minded, whimsical, skittish, flighty, irresponsible, thoughtless, lacking in sense, feather-brained, empty-headed, pea-brained, birdbrained, vacuous, vapid

informal dizzy, dippy, dopey, batty, dotty, nutty

North American informal ditzy

ANTONYMS

sensible, serious

2‘they never indulged in frivolous remarks’

SYNONYMS

flippant, glib, waggish, joking, jokey, light-hearted, facetious, fatuous, inane, shallow, superficial, senseless, thoughtless, ill-considered, non-serious

informal flip

British informal daft

archaic frolicsome, sportive, jocose

ANTONYMS

serious

3‘her face was thickly painted and her clothes were frivolous’

SYNONYMS

impractical, frothy, flimsy, insubstantial

ANTONYMS

practical

4‘new rules to stop frivolous lawsuits’

SYNONYMS

time-wasting, trivial, trifling, minor, petty, lightweight, insignificant, unimportant, worthless, valueless, pointless, paltry, niggling, peripheral

ANTONYMS

important