underclassmen's Usage Examples:

Upperclassmen move into off-campus housing every year and need to get rid of their dorm-specific equipment, so they'll often sell it to underclassmen at low prices.

Be careful of this, since some seniors will use the opportunity to play pranks on underclassmen.

Parking mayhem - Seniors can either switch parking spaces with underclassmen or take up two or three spaces, leaving the others with nowhere to park.

For most, the ultimate goal is to create a memorable legacy that will be talked about by class members and even underclassmen for days, weeks, and even years to come.

Synonyms:

fresher, freshman, sophomore, junior, soph, undergrad, undergraduate, lowerclassman,

Antonyms:

last, terminal, old, insubordinate, senior,