Wiktionary
downiest
a. (en-superlative of: downy)
WordNet
downy
downiest
See downy
Usage examples of "downiest".
His Grace, that is, his late lordship, always said you were the downiest one of the family.
The sweetest-scented grasses lined her bower where other soft, furry pelts made hers the downiest couch in all the jungle.
Wheat, ready to be gathered and threshed, but the newest and yellowest and downiest of Mrs.