Synonyms for Downy (same or very similar meaning)
WordNet sense 1 (like down or as soft as down):
flossy, fluffy, downlikeWordNet sense 2 (yielding readily to pressure or weight):
softWordNet sense 3 (covered with fine soft hairs or down):
pubescent, sericeous, puberulentWordNet sense 4 (having or covered with hair):
haired, hairy, hirsuteFrom the ODE community, based on WordNetadd/edit