Definition of faddiness in English:

faddiness

noun

British
  • See faddy

    • ‘In order to break the ‘I must only do random, yet factually correct and interesting posts’ perception, I'm going to launch into trashy internet faddiness.’
    • ‘In clinical practice, some children with food refusal and pickiness (United States) or faddiness (United Kingdom) do gain weight poorly, and some children with slow weight gain from early infancy go on to manifest severe eating problems.’

Pronunciation

faddiness

/ˈfadɪnəs/