unmarried woman

English Thesaurus

1. a woman who is not married (noun.person)

hypernym	:	adult female, woman,
definition	:	an adult female person (as opposed to a man) (noun.person)

hyponym	:	signorina,
definition	:	an Italian courtesy title for an unmarried woman; equivalent to `Miss', it is either used alone or before a name (noun.person)

hyponym	:	old maid, spinster,
definition	:	an elderly unmarried woman (noun.person)