Elinor dashwood was upset by the women's conversation in the drawing room because it was

Because it was "extremely insipid and superficial".

Elinor Dashwood is an anecdotal character and the hero of Jane Austen's novel Sense and Sensibility. In this novel, Austen investigates the contention between the contradicting personalities of sense and sensibility. In this contention, Elinor, a somehow introvert, practical, and insightful young lady who epitomizes the "sense" of the title, is compared to her sister Marianne who typifies "sensibility".

the answer is "extremely insipid"