Definition of offhandedness in US English:

offhandedness

noun

  • See offhand

    • ‘There was a mocking, offhandedness to his voice that set her on edge.’
    • ‘His fathering style, interestingly, was not much different from his writing style, which is to say, excellence disguised as offhandedness.’
    • ‘Many of the best gags here are throwaway ones, delivered with an offhandedness that makes them work.’
    • ‘It's not exactly nonchalance, rather a studied offhandedness.’
    • ‘Throughout the photos shown there is an offhandedness that only a master can effect, but his display of nonchalance is gracious and at times humorous.’

Pronunciation

offhandedness

/ˌɔfˈhændədnəs//ˌôfˈhandədnəs/