1. the quality or state of being bonny; attractiveness or prettiness
Usage: chiefly British and Scottish; informal
2. the quality of being healthy, robust, or vigorous in appearance
Usage: chiefly British and Scottish; informal

Examples

• The bonniness of the Scottish landscape impressed all the visitors.
• She was admired for her natural bonniness and radiant smile.
• The baby's bonniness was evident in her rosy cheeks and bright eyes.
• He remarked on the bonniness of the highland scenery.
• Her bonniness made her a favorite among the villagers.
• The bonniness of the spring flowers lifted everyone's spirits.