frivolous Synonyms - page 2
harebrained
devil-may-care
unremunerative
amphigoric
flippant
foolish
frothy
futile
giddy
glib
idle
immaterial
immature
inane
inconsequential
flighty
finikin
capricious
childish
deafly
depthless
dizzy
facetious
factious
fatuous
fickle
fiddling
fingle-fangle
inconsiderable
insignificant
pettifogging
picayune
piddling
playful
pointless
prankish
puerile
purportless
scatter-brained
scratcher
senseless
peripheral
paltry
insubstantial
irresponsible
light
light-headed
light-minded
mere
minor