frivolous

1 ENTRIES FOUND:
frivolous /ˈfrɪvələs/ adjective
frivolous
/ˈfrɪvələs/
adjective
Britannica Dictionary definition of FRIVOLOUS
[more frivolous; most frivolous]
1 
: not important : not deserving serious attention
2 

— frivolously

adverb

— frivolousness

noun [noncount]