spin·ster 
/ˈspɪnstɚ/ noun
plural spin·sters /ˈspɪnstɚ/ noun [count] old-fashioned + often disapproving : an unmarried woman who is past the usual age for marrying and is considered unlikely to marry — now often considered an insulting word ▪ She was afraid of becoming a spinster. ▪ my spinster aunts
— spin·ster·hood /ˈspɪnstɚˌhʊd/ noun [noncount]
/ˈspɪnstɚˌhʊd/ noun [noncount]
