'Sunbonnet' definitions:

Definition of 'sunbonnet'

From: WordNet
noun
A large bonnet that shades the face; worn by girls and women

Definition of 'Sunbonnet'

From: GCIDE
  • Sunbonnet \Sun"bon"net\, n. A bonnet, generally made of some thin or light fabric, projecting beyond the face, and commonly having a cape, -- worn by women as a protection against the sun. [1913 Webster]