Junior and Subaltern

Junior adjective - Younger; lower in rank; shorter in length of tenure or service.

Subaltern and junior are semantically related in over topic. In some cases you can use "Subaltern" instead the word "Junior" as a noun or an adjective, when it comes to topics like underling.

Subaltern adjective - Inferior in rank or status.

Junior and subaltern are semantically related in over topic. You can use "Junior" instead the word "Subaltern" as a noun or an adjective, if it concerns topics such as underling.