Defining ‘woman’ faces a few problems as there is little agreement or an objective form of femininity that can accurately described. Being a female is not enough to define woman for though a person may have female genitalia and function, they do not consider themselves to be women, “One is not born but becomes a woman,” (Second Sex). If being a female is not a sufficient condition to be a woman, then determining what the necessary condition is would be the next step. However, de Beauvoir finds femininity to be a lofty and hardly definitive concept, “It is frequently described in vague and dazzling terms that seem to have been borrowed from the vocabulary of the seers,” (Second Sex). There would need to be a form of femininity to look towards but a clear image cannot be conjured. For these reasons de Beauvoir rejects either explanation of what woman is but still holds that the word possesses content. Males do not have a need to define themselves, she finds as what a man is appears to be obvious to anyone. He is considered the default of humans based on word usage: mankind and the use of man to refer to humans. As he has made himself the subjugator of women, he is the one to be idealized making himself the positive. This leaves woman to be the Other of man.
The woman’s position as the Other presents a unique obstacle towards obtaining solidarity not shared by different Others. Women have a difficult time banding together for three reasons: they have always existed with their One (man), they cannot exist without their One (though modern medicine may pose some challenges to that), and they exist within all other groups. There could not have been a time where men lived in the own corner of the world, women in theirs, and then happened upon each other. This is unlike the production of the Other in de Beauvoir’s examples of the Negro or the Jew, “the two groups concerned have often been originally independent; they may have been formerly unaware of each other’s existence… But a historical event has resulted in the subjugation of the weaker by the stronger,” (Second Sex). Through biological necessity, man and woman have always been intertwined; one needs the other to continue the species. The people called the white One and the black Other do not need each other to prolong their groups survival. Because of this mutual dependency, women (and men) will be found within every group not using gender as a criterion: economic class, race, ethnicity, geographic location, religion, social ladder rung, etc.
“for man represents both the positive and the neutral, as is indicated by the common use of man to designate human beings in general; whereas woman represents only the negative, defined by limiting criteria, without reciprocity”
This is off topic but I thought it would be interesting to point out that biological study does not support this conception of men and women’s’ relationship to each other: women can be seen as the neutral and both have what would be called positive and negative qualities. From observing prenatal development, the female sex is somewhat the default state. A typical fetus has gonads and both systems that develop into complex genitalia. When no sex hormones are present, the system that would create male genitalia withers away. It is only through the presence of the SRY gene (from the y-chromosome) that androgens in sufficient quantities are made available which stimulate growth of the male system and the withering of the female. Each sex starts with the beginnings of both systems and by the presence of either another x or a y-chromosome, one system grows and the other withers.