What are the opposite words for mountain?

Mountain is a word that signifies a large elevated landform, often with steep sides and a peak. However, there are many antonyms for this term that represent the opposite of mountain. These words can be classified into different categories such as landscape, geography and nature. Some antonyms for mountain include valley, plateau, hill, basin, plain, lowland, flatland, dale, depresion, trench, abyss, ocean, sea, beach, prairie, desert, and savannah. These words describe a low lying terrain, sometimes with rolling hills or flatlands. While mountainous landscapes provide breathtaking views, their antonyms present diverse sceneries that are no less admirable.

Antonym of the day

most elbow-to-elbow
deserted, empty, imprecise.