Synonyms of tableland
flatA low flat area of uncultivated land, especially an area where the ground is soft and wet, can be referred to as flats or a flat.
• salt marshes and mud flats
plainA plain is a large flat area of land with very few trees on it.
• Once there were 70 million buffalo on the plains.
plateauA plateau is a large area of high and fairly flat land.
• a high, flat plateau of cultivated land
Thesaurus for tableland from the Collins English Thesaurus