Red-hot and Ultra modern

Red-hot adjective - Being or involving the latest methods, concepts, information, or styles.

Ultra modern and red-hot are semantically related In some cases you can use "Ultra modern" instead an adjective phrase "Red-hot".

Red-hot and ultra modern are semantically related in contemporary topic. Sometimes you can use "Red-hot" instead an adjective phrase "Ultra modern", if it concerns topics such as modern, highest level of development.