Some accurate words to describe the character of the narrator in this passage are: dim-witted, innocent, and ridiculous.
Characterization refers to the way the author of a text describes the characters that he employs in his writing.
In Mrs. Bullfrog by Nathaniel Hawthorne, we can see that the author directly characterizes this individual by describing her as foolish and dimwitted. This can be seen in the first line of the text.
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