The underclass struggles to escape poverty and improve their living conditions.

The underclassers are excited for the upcoming school dance.

The underclasser struggled to find stable employment.

The underclasses face numerous challenges in society.

The underclassness of the neighborhood was evident in the dilapidated buildings and high crime rate.

The underclassmen are excited for the new school year.

The underclassman was excited to start high school.

She is an underclasswoman at the university.

She is the only underclassperson in the club.

There are many underclasspersons in the school.