adjective not having or showing good judgment; lacking discernment
The undiscerning protagonist failed to see the deceit of the antagonist.
The undiscerning audience member missed the subtle symbolism in the movie.
An undiscerning palate may not appreciate the nuances of a fine wine.
The undiscerning viewer failed to appreciate the depth of the artist's work.
The undiscerning shopper may overlook the quality of a designer item.
In the context of writing, 'undiscerning' may refer to a writer who lacks critical judgment or discrimination in their choice of words, ideas, or themes.
A psychologist may use the term 'undiscerning' to describe a patient who is unable to make careful distinctions or judgments in their thoughts or behaviors.
An editor may use 'undiscerning' to critique a piece of writing that lacks depth, insight, or careful selection of content.
An art critic might use 'undiscerning' to describe a viewer who fails to appreciate the nuances, techniques, or meanings in a work of art.