Definition of frivolousness in US English:

frivolousness

noun

  • See frivolous

    • ‘Despite popular belief, frivolousness doesn't deserve any less merit than seriousness does.’
    • ‘But if you want to be pleasantly lulled into a state of happy frivolousness, check out Dorf and his comedy collection.’
    • ‘But as it stands, Man's Best Friend is a decent horror film occasionally hindered by the cruelty inherent in its subject matter and an awkward frivolousness in tone.’
    • ‘Time does not wait for anyone, and because there is change in every moment, frivolousness harms only ourselves.’
    • ‘Most children exude such joy and frivolousness.’

Pronunciation

frivolousness

/ˈfrɪvələsnəs//ˈfrivələsnəs/