frivolous

adjectives

not serious in content or attitude or behavior
"a frivolous novel"; "a frivolous remark"; "a frivolous young woman"
frivolous
is derived from
frivolousness
is derived from
frivolity
is derived from
frivolity
antonym
serious
is similar to
lacking seriousness; given to frivolity
"a dizzy blonde"; "light-headed teenagers"; "silly giggles"
airheaded, dizzy, empty-headed, featherbrained, giddy, light-headed, lightheaded, silly
is similar to
guided by whim and fancy
"flighty young girls"
flighty, flyaway, head-in-the-clouds, scatterbrained
is similar to
showing inappropriate levity
flippant, light-minded
is similar to
silly or trivial
"idle pleasure"; "light banter"; "light idle chatter"
idle, light
is similar to
intended primarily as entertainment; not serious or profound
"light verse"; "a light comedy"
light
is similar to
concerned with trivialities
"a trivial young woman"; "a trivial mind"
trivial
see also
concerned with or comprehending only what is apparent or obvious; not deep or penetrating emotionally or intellectually
"superficial similarities"; "a superficial mind"; "his thinking was superficial and fuzzy"; "superficial knowledge"; "the superficial report didn't give the true picture"; "only superficial differences"
superficial
is an attribute of
the trait of being serious
"a lack of solemnity is not necessarily a lack of seriousness"- Robert Rice
earnestness, serious-mindedness, seriousness, sincerity