The definition of a giantess is a lady giant.
An example of a giantess is the wife of a giant in a fairy tale.
A female giant.
- He was the offspring of Loki and the giantess Angurboda, who bore two other children, Midgard the serpent, and Hel the goddess of death.
- She ought perhaps to be regarded rather as a goddess than as a giantess, but she is never associated with the other.