👉 Antievolutional is a concept in physics and cosmology that posits that the universe has undergone an initial phase of rapid expansion, which eventually led to its current state of compactness. This transition from a highly expanding state to a more compact one can be described as "antievolution," where the universe appears less dense than it actually was. The term is often used in discussions about the origin and evolution of the universe, but it is not universally accepted or agreed upon by all scientists.