buxomest

adjective
  1. superlative form of buxom; most full-figured or curvaceous in body shape, especially referring to a woman
  2. Usage: superlative degree; often considered dated or informal in modern usage
  3. superlative form of buxom; most lively, cheerful, or robust in manner or spirit
  4. Usage: superlative degree; archaic or literary usage

Examples