What is another word for argillaceous?
Pronunciation: [ˌɑːɡɪlˈe͡ɪʃəs] (IPA) 
Argillaceous is an adjective that refers to something that contains or is made up of clay. Some synonyms for argillaceous include clayey, loamy, and muddy. Clayey generally refers to soil or sediment that is heavy and sticky, while loamy means fertile and well-draining soil that contains a mixture of sand, silt, and clay. Muddy suggests that something is covered in or contains a great deal of wet, soft dirt. Other synonyms for argillaceous include earthy, siltaceous, and silty, which all refer to the presence of sediment in soil or other materials. These synonyms can be useful when describing soils, rocks, or other natural materials.
