Batholithic is a term used to describe a large and intrusive mass of igneous rock that has solidified beneath the Earth's surface. There are a number of synonyms that can be used to describe this geological feature, including plutonic, intrusive, and abyssal. Other words that can be used to describe similar geological formations include laccolith, dike, and sill. These formations all share common characteristics including size, depth, and composition, and are often found in mountainous regions or areas of active volcanic activity. Overall, there are a variety of terms that can be used to describe batholiths, each with its own specific connotation and context.