Synonyms for Sonsy (same or very similar meaning)
WordNet sense 1 ((of a woman's body) having a large bosom and pleasing curves):
bosomy, curvaceous, curvy, voluptuous, full-bosomed, sonsie, well-endowedWordNet sense 2 (having a well-proportioned and pleasing shape):
shapelyFrom the ODE community, based on WordNetadd/edit