Prior to the 1850’s, women had little influence in the literary sphere. “Women writers were stereotyped as being brainy, selfish, unladylike, and unattractive,” leaving the role to the “more capable” men of the time.[1] These men, fearful of competition, harshly criticized any woman who tried to impose on their livelihood. Thus, they attached little value to female literary products, claiming the inadequacy to be the result of “their supposed deficiencies as women.”
Explanation: I found this here: https://commons.trincoll.edu/1862/2012/12/20/1862-the-explosion-of-women-writers/
They are not synonyms of each other, but both are used as synonyms of the word "unbiased." Each word has a very broad meaning, and the meanings only intersect when describing an unbiased opinion or view.
