Definition of downiness in US English:

downiness

noun

  • See downy

    • ‘It's also the softness you experience when you touch a Golden Retriever and it's the downiness of a baby chick.’
    • ‘Note the downiness of Cupid's wings and the unblemished quality of the flesh in cruelly close proximity to the sharpness of the lion's claw.’
    • ‘She shakily lays a hand upon Christian's head and smoothes the downiness of his hair.’

Pronunciation

downiness

/ˈdounēnəs//ˈdaʊninəs/