Definition of bonniness in English:

bonniness

noun

See bonny

‘Round, plump or normal-sized women have become the secretly desired, the quiet lust of men pushed towards boniness rather than bonniness.’
  • ‘Equally effective is Brigge's anxious scrutiny of newborn Samuel, who flutters between listless near-death and bubble-blowing bonniness.’
  • ‘The spoken performances, though, lack the bonniness of Branagh's earlier Shakespeare romance, ‘Much Ado About Nothing,’.’