Downthrown is a term used to describe when rocks or rock formations have been displaced due to tectonic forces. Some synonyms for downthrown include subsidence, slumped, depressed, and sunken. Subsidence is a term typically used to describe sinking or settling of the ground's surface due to natural causes. Slumped and depressed can be used to describe a more gradual sinking or move down of a particular area. Sunken is often used to describe something that has dropped or settled at a faster rate than the surrounding area. These synonyms for downthrown help geologists and others describe the movement of rock formations in a more descriptive way.