upperclassman |
undefined |
As a noun upperclassman
is (us) a junior or senior student in a school or college.
As an adjective undefined is
lacking a definition or value.
upperclassman |
|
upperclassman |
upperclassmen |
As nouns the difference between upperclassman and upperclassmen
is that
upperclassman is a junior or senior student in a school or college while
upperclassmen is plural of upperclassman.