Under-the-table and Unstudious

Under-the-table adjective - Designed and carried out secretly or confidentially.

Unstudious and under-the-table are semantically related. In some cases you can use "Unstudious" instead an adjective phrase "Under-the-table".

Unstudious adjective - Not studious.

Under-the-table and unstudious are semantically related. Sometimes you can use "Under-the-table" instead an adjective "Unstudious".