Definition of tattiness in US English:

tattiness

noun

informal
  • See tatty

    • ‘But much of the 1960s furniture, in its tattiness, looks pretty real.’
    • ‘Despite their undeniable tattiness, the Confessions films still enjoy an ardent fan following.’
    • ‘It looked nicely atmospheric, very clean-lined, almost too modern next to the checkerboard tattiness of its neighbors.’
    • ‘The second chugs slowly and noisily between Glasgow and Edinburgh with that inevitable air of impending tattiness.’
    • ‘There is a forthright vitality to the detailing that manages to sidestep judgements of tastefulness or tattiness.’

Pronunciation

tattiness

/ˈtadēnəs//ˈtædinəs/