Nubility is commonly defined as the quality of being marriageable or eligible for marriage, especially in reference to a young woman. When it comes to synonyms for this term, there are a few different options to consider. One possible word is sexuality, which refers to the qualities or characteristics that are associated with sex or sexual attraction. Alternatively, marriageability is another option, which directly relates to the idea of being eligible for marriage. Other potential synonyms for nubility could include fertility, womanhood, or simply the age of consent. Ultimately, the choice of which synonym to use may depend on the specific context of the situation and the speaker's intended meaning.