Sub-rosa and Under the table

Sub-rosa adjective - Designed and carried out secretly or confidentially.

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

Sub-rosa and under the table are semantically related in secret topic. Sometimes you can use "Sub-rosa" instead an adjective phrase "Under the table", if it concerns topics such as sneaky, underhand.