大龄青年

young people in their late 20s or older who are still unmarried

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

older (than average in a group, at school, for marriage etc)

age / length of experience, membership etc

abbr. for 青海[Qing1 hai3], Qinghai Province

green / blue / black / youth / young (of people)

youth / youthful years / young person / the young

surname Nian

year / CL:個|个[ge4]

grain / harvest (old) / variant of 年[nian2]