Regenerateness can be expressed in several ways. One synonym for regenerateness is renewal, which suggests a fresh start and the regeneration of something that was once lost or damaged. Another synonym is rejuvenation, which refers to the process of making something youthful and vibrant again. Revival is another synonym that conveys the idea of bringing something back to life or restoring its former glory. Regrowth is also a synonym for regenerateness, as it implies the growth and development of something new after it has been damaged. Finally, renaissance is a synonym that conveys the idea of a rebirth or awakening, and the start of a new era.