Long-haired and Up on

Long-haired adjective - Much given to learning and thinking.

Up on and long-haired are semantically related. In some cases you can use "Up on" instead an adjective phrase "Long-haired".

Up on adjective - Being up to particular standard or level especially in being up to date in knowledge.

Long-haired and up on are semantically related. Sometimes you can use "Long-haired" instead an adjective "Up on".