frivolous
adjectiveformal/fuˈtil/low
fú·til
Definition
Of little importance; trivial, superficial, or lacking in seriousness.
He was accused of spending money on frivolous luxuries.
The meeting was bogged down by frivolous details.
Common collocations
frivolous conversationfrivolous concernfrivolous matterfrivolous behavior
Etymology
Do latim 'futilis' (que se derrama facilmente, logo inútil).